Mopar1973Man

P0071 - Ambient Air Temperature Sensor Performance Theory of Operation The Ambient Air Temperature (AAT) Sensor is located in the driver's door mirror. The Driver's Door Module (DDM) receives the data from the AAT sensor and sends it to the Body Control Module (BCM). The BCM then passes the data on to the Powertrain Control Module (PCM). There are two rationality tests. The first test is: Ignition on/engine running. The second test is: After an eight hour cold soak, at key on the readings for the AAT, Charge Air Cooler (CAC) temperature (D2, DJ), Intake Manifold Temperature (DD, DP), and the Engine Coolant Temperature (ECT) Sensors are all compared. If the temperatures differ by more than a calibrated amount, then the appropriate sensor fault code would be recorded. The PCM rationality check looks at the temperature reading from the sensor over time and ensures that it changes with the engine running. If the sensor reading does not change over a calibrated time limit, the fault will be recorded. When Monitored and Set Conditions When Monitored: This diagnostic runs continuously when the following conditions are met: • Ignition on/engine off, or while the engine is running. Set Conditions: • The Powertrain Control Module (PCM) detects a fault in the Ambient Air Temperature Sensor circuit or is missing the signal. Default Actions: • The MIL is illuminated. Possible Causes AAT SIGNAL CIRCUIT SHORTED TO VOLTAGE AAT SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE AAT SIGNAL CIRCUIT SHORTED TO GROUND AAT SIGNAL CIRCUIT SHORTED TO HEATED MIRROR RETURN GROUND AAT SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE AMBIENT AIR TEMPERATURE (AAT) SENSOR DRIVERS DOOR MODULE (DDM) Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTCBased Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). Diagnostic Test 1. ACTIVE DTC NOTE: Diagnose any CAN C Bus Communication DTCs before continuing. NOTE: If there are any other DTC's related to the Engine Coolant Temperature (ECT) sensor, Charge Air Temperature sensor, or Intake Manifold Temperature Sensor present in the PCM perform thr Diagnostics for those DTCs before continuing with this one. 1. Turn the ignition one. 2. With the scan tool, select View DTCs. Is the DTC active? Yes • Go To 2 No • Perform the INTERMITTENT DTC diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 2. CHECK THE (G31) AAT SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 1. Turn the ignition off. 2. Disconnect the Ambient Air Temperature Sensor (AAT) harness connector. 3. Turn the ignition on, engine not running. 4. Measure the voltage on the (G31) AAT Signal circuit in the AAT Sensor harness connector. Is the voltage above 5.2 volts? Yes • Repair the (G31) AAT Signal circuit for a short to voltage. • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Go To 3 3. CHECK THE (G31) AAT SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 1. Turn the ignition off. 2. Disconnect the Driver Door Module (DDM) C2 harness connector. 3. Measure the resistance of the (G31) AAT Signal circuit between the Ambient Air Temperature Sensor harness connector and the DDM C2 harness connector. Is the resistance below 5.0 Ohms? Yes • Go To 4 No • Repair the (G31) AAT Signal circuit for an open or high resistance. • Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 4. CHECK THE (C160) HEATED MIRROR RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE 1. Measure the resistance of the (C160) Heated Mirror Return circuit between the Ambient Air Temperature Sensor harness connector and the DDM C2 harness connector. Is the resistance below 5.0 Ohms? Yes • Go To 5 No • Repair the (C160) Heated Mirror Return for an open or high resistance. • Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 5. CHECK THE (G31) AAT SIGNAL CIRCUIT FOR A SHORT TO GROUND 1. Measure the resistance between ground and the (G31) AAT Signal circuit in the AAT Sensor harness connector. Is the resistance above 10k Ohms? Yes • Go To 6 No • Repair the (G31) AAT Signal circuit for a short to ground. • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 6. CHECK FOR THE (G31) AAT SIGNAL CIRCUIT SHORTED TO THE (C160) HEATED MIRROR RETURN CIRCUIT 1. Measure the resistance between the (G31) AAT Signal circuit and the (C160) Heated Mirror Return circuit at the AAT Sensor harness connector. Is the resistance above 10k Ohms? Yes • Go To 7 No • Repair the short between the (G31) AAT Signal circuit and the (C160) Heated Mirror Return circuit. • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 7. AMBIENT AIR TEMPERATURE SENSOR 1. Turn the ignition off. 2. Replace the Ambient Air Temperature Sensor in accordance with the Service Information.(Refer to 24 - Heating and Air Conditioning/Controls/SENSOR, Ambient Temperature/Removal) 3. Turn the ignition on. 4. With the scan tool, read DTCs. Is the DTC still reporting active or pending? Yes • Go To 8 No • Repair is complete. • Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 8. DRIVERS DOOR MODULE (DDM) 1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the AAT Sensor and the Drivers Door Module (DDM). 2. Look for any chafed, pierced, pinched or partially broken wires. 3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the AAT Sensor and Drivers Door Module connectors. 4. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes • Repair as necessary. • Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Body Control (BCM) /Standard Procedure). No • Replace the Drivers Door Module (DDM) in accordance with the Service Information. • Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Body Control (BCM) /Standard Procedure).

P007D - Charge Air Cooler Temperature Sensor Circuit High Theory of Operation The Charge Air Cooler Temperature Sensor circuit is represented as the Intake Manifold Temperature Sensor circuit on the Cab and Chassis. On the Regular Cab it is still called the Charge Air Cooler Temperature Sensor circuit. In both configurations, this DTC refers to the circuit that runs from the Powertrain Control Module (PCM) C1 harness connector / terminal 62 to the Temperature/Pressure MAP sensor / terminal 3. The Powertrain Control Module (PCM) supplies 5-Volts to the Charge Air Cooler Temperature signal circuit. The PCM monitors the change in voltage caused by changes in the resistance of the sensor to determine the Charge Air Cooler temperature. The PCM will illuminate the Malfunction Indicator Lamp (MIL) after the diagnostic runs and fails in two consecutive drive cycles. During this time the customer may notice periods of white smoke as well as the fan running more often. The MIL lamp is turned off once the diagnostic runs and passes in four consecutive drive cycles. • When Monitored: The PCM monitors the change in signal voltage and converts this to a temperature value. • Set Condition: The CAC Outlet Temperature Sensor Signal circuit goes above a calibrated threshold. Possible Causes CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE CAC OUTLET TEMPERATURE SENSOR RETURN CIRCUIT OPEN/HIGH RESISTANCE TEMPERATURE/PRESSURE MAP SENSOR POWERTRAIN CONTROL MODULE (PCM) Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTCBased Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). Diagnostic Test 1. ACTIVE DTC 1. Turn the ignition on. 2. With the scan tool, record all Freeze frame data. 3. With the scan tool, erase DTCs. 4. Turn the ignition off for 75 seconds. 5. Turn the ignition on. 6. With the scan tool, read DTCs. Did the DTC reset? Yes • Go To 2 No • Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 2. CHECK THE (K48) CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 1. 2. Ignition on. 3. Disconnect the Temperature/Pressure Map Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. 4. With a voltmeter connected to ground, measure the voltage of the (K48) CAC Outlet Temperature Sensor Signal circuit at the Temperature/Pressure Map Sensor harness connector. Is the voltage above 5.1 Volts? Yes • Repair the (K48) CAC Outlet Temperature Sensor Signal circuit for a short to voltage. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Go To 3 3. CHECK THE TEMPERATURE/PRESSURE MAP SENSOR 1. Turn the ignition off. 2. Measure the resistance from the Sensor ground (K916) to the (K48) CAC Outlet Temperature Signal circuit across the terminals at the Temperature/Pressure Map Sensor harness connector. Is the resistance between 300 and 90k Ohms? Yes • Go To 4 No • Replace the Temperature/Pressure MAP Sensor in accordance with the Service Information.(Refer to 14 - Fuel System/Fuel Injection/SENSOR, TMAP-Intake Manifold/Removal) • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 4. CHECK THE (K48) CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 1. Disconnect the PCM C1 harness connector. NOTE: Check connectors - Clean/repair as necessary. 2. Measure the resistance of the (K48) CAC Outlet Temperature Sensor Signal circuit between the Temperature/Pressure Map Sensor harness connector and the PCM C1 harness connector. Is the resistance below 5.0 Ohms? Yes • Go To 5 No • Repair the (K48) CAC Outlet Temperature Sensor Signal circuit for an open or high resistance. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 5. CHECK THE (K916) INTAKE MANIFOLD TEMPERATURE SENSOR RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE 1. Measure the resistance of the (K916) Intake Manifold Temperature Sensor Ground circuit between the Temperature/Pressure Map Sensor harness connector and the PCM C1 harness connector. Is the resistance below 5.0 Ohms? Yes • Go To 6 No • Repair the (K916) Temperature/Pressure MAP Sensor ground circuit for an open or high resistance. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 6. POWERTRAIN CONTROL MODULE 1. Disconnect all PCM harness connectors. 2. Disconnect all related in-line harness connections (if equipped). 3. Disconnect the related component harness connectors. 4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions: • Proper connector installation. • Damaged connector locks. • Corrosion. • Other signs of water intrusion. • Weather seal damage (if equipped). • Bent terminals. • Overheating due to a poor connection (terminal may be discolored due to excessive current draw). • Terminals that have been pushed back into the connector cavity. • Perform a terminal drag test on each connector terminal to verify proper terminal tension. Repair any conditions that are found. 5. Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged. 6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged. 7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged. 8. With the scan tool, erase DTCs. 9. Using the recorded Freeze Frame and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC. 10. With the scan tool, read PCM DTCs. Did the DTC return? Yes • Replace the Powertrain Control Module (PCM) in accordance with the Service Information. (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, Powertrain Control/Removal) . • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Test complete. • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

P007C - Charge Air Cooler Temperature Sensor Circuit Low Theory of Operation The Charge Air Cooler Temperature Sensor circuit is represented as the Intake Manifold Temperature Sensor circuit on the Cab and Chassis. On the Regular Cab it is still called the Charge Air Cooler Temperature Sensor circuit. In both configurations, this DTC refers to the circuit that runs from the Powertrain Control Module (PCM) C1 harness connector / terminal 62 to the Temperature/Pressure MAP sensor / terminal 3. The Powertrain Control Module (PCM) supplies 5-Volts to the Charge Air Cooler Temperature signal circuit. The PCM monitors the change in voltage caused by changes in the resistance of the sensor to determine the Charge Air Cooler temperature. The PCM will illuminate the Malfunction Indicator Lamp (MIL) after the diagnostic runs and fails in two consecutive drive cycles. During this time the customer may notice periods of white smoke as well as the fan running more often. The MIL lamp is turned off once the diagnostic runs and passes in four consecutive drive cycles. • When Monitored: The PCM monitors the change in signal voltage and converts this to a temperature value. • Set Condition: The CAC Outlet Temperature Sensor Signal circuit goes below a calibrated threshold. Possible Causes CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE TEMPERATURE/PRESSURE MAP SENSOR POWERTRAIN CONTROL MODULE (PCM) Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTCBased Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). Diagnostic Test 1. ACTIVE DTC 1. Turn the ignition on. 2. With the scan tool, record all Freeze frame data. 3. With the scan tool, erase DTCs. 4. Turn the ignition off for 75 seconds. 5. Turn the ignition on. 6. With the scan tool, read DTCs. Did the DTC reset? Yes • Go To 2 No • Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 2. CHECK THE (K48) CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND 1. 2. Turn the ignition off. 3. Disconnect the Temperature/Pressure Map Sensor harness connector. 4. Disconnect the PCM C1 harness connector. NOTE: Check connectors - Clean/repair as necessary. 5. Measure the resistance between ground and the (K48) CAC Outlet Temperature Sensor Signal circuit at the Temperature/Pressure MAP Sensor harness connector. Is the resistance above 5.0 Ohms? Yes • Go To 3 No • Repair the (K48) CAC Outlet Temperature Sensor Signal circuit for a short to ground. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 3. CHECK THE (K48) CAC OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 1. Measure the resistance of the (K48) CAC Outlet Temperature Sensor Signal circuit between the Temperature/Pressure Map Sensor harness connector and the PCM C1 harness connector. Is the resistance below 5.0 Ohms? Yes • Go To 4 No • Repair the (K48) CAC Outlet Temperature Sensor Signal circuit for an open or high resistance. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 4. TEMPERATURE/PRESSURE MAP SENSOR 1. Replace the Temperature/Pressure MAP Sensor.(Refer to 14 - Fuel System/Fuel Injection/SENSOR, TMAP-Intake Manifold/Removal) 2. Turn the ignition on. 3. With the scan tool, erase DTCs. 4. Turn the ignition off for 75 seconds. 5. Start the vehicle. It may be necessary to drive vehicle to reset DTC. 6. With the scan tool, read DTCs. Did the DTC return? Yes • Go To 5 No • Repair is complete. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 5. POWERTRAIN CONTROL MODULE 1. Disconnect all PCM harness connectors. 2. Disconnect all related in-line harness connections (if equipped). 3. Disconnect the related component harness connectors. 4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions: • Proper connector installation. • Damaged connector locks. • Corrosion. • Other signs of water intrusion. • Weather seal damage (if equipped). • Bent terminals. • Overheating due to a poor connection (terminal may be discolored due to excessive current draw). • Terminals that have been pushed back into the connector cavity. • Perform a terminal drag test on each connector terminal to verify proper terminal tension. Repair any conditions that are found. 5. Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged. 6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged. 7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged. 8. With the scan tool, erase DTCs. 9. Using the recorded Freeze Frame and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC. 10. With the scan tool, read PCM DTCs. Did the DTC return? Yes • Replace the Powertrain Control Module (PCM) in accordance with the Service Information. (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, Powertrain Control/Removal) . • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Test complete. • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

P007B - Charge Air Cooler Temperature Sensor Circuit Performance Theory of Operation The Charge Air Cooler Temperature Sensor circuit is represented as the Intake Manifold Temperature Sensor circuit on the Cab and Chassis. On the Regular Cab it is still called the Charge Air Cooler Temperature Sensor circuit. In both configurations, this DTC refers to the circuit that runs from the Powertrain Control Module (PCM) C1 harness connector / terminal 62 to the Temperature/Pressure MAP sensor / terminal 3. The Powertrain Control Module (PCM) supplies 5-Volts to the Charge Air Cooler Temperature signal circuit. The PCM monitors the change in voltage caused by changes in the resistance of the sensor to determine the Charge Air Cooler temperature. The PCM will illuminate the Malfunction Indicator Lamp (MIL) after the diagnostic runs and fails in two consecutive drive cycles. During this time the customer may notice periods of white smoke as well as the fan running more often. The MIL lamp is turned off once the diagnostic runs and passes in four consecutive drive cycles. When Monitored and Set Conditions When Monitored: This diagnostic runs continuously when the following conditions are met: • With the ignition on. Set Conditions: • The Powertrain Control Module (PCM) detects that at key on engine off, the Intake Manifold Temperature Sensor Signal reads differently than the EGR Orifice Temperature Sensor and Coolant Temperature Sensor. Or, while the engine is running the Powertrain Control Module (PCM) does not read a change in value on the Intake Manifold Temperature Sensor Signal over a pre-determined amount of time. Default Actions: • The MIL is illuminated. Possible Causes AIR CLEANER BOX NOT SEALING PROPERLY TO THE INLET AIR TUBE DIRT OR DEBRIS IN CHARGE AIR COOLING SYSTEM TEMPERATURE/PRESSURE MAP SENSOR Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTCBased Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 1. ACTIVE DTC NOTE: If there are any 5-Volt supply DTCs present, repair those DTCs before proceeding with this test. 1. Turn the ignition on. 2. With the scan tool, record all Freeze frame data. 3. With the scan tool, erase DTCs. 4. Turn the ignition off for 75 seconds. 5. Turn the ignition on. 6. With the scan tool, read DTCs. Did the DTC return? Yes • Go To 2 No • Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 2. CHECK THE AIR CLEANER BOX FOR PROPER SEALING 1. Check the connection between the Inlet Air Tube and the Air Cleaner Box to make sure that it is sealed properly. Is the Air Cleaner Box to Inlet Air Tube installed and sealed properly? Yes • Go To 3 No • Repair the connection between the Air Cleaner Box and the Inlet Air Tube. • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 3. CHECK THE CHARGE AIR COOLER AND SYSTEM FOR DIRT OR DEBRIS 1. Remove the hoses at the Charge Air Cooler and Turbo outlet and inspect the system for signs of excessive oil, dirt or debris. Does the Charge Air Cooling system show signs of excessive dirt or debris? Yes • Clean the Charge Air Cooling system in accordance with the service information • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Go To 4 4. CHECK THE TEMPERATURE/PRESSURE MAP SENSOR 1. Let engine cold soak up to eight hours. 2. Turn the ignition on. 3. With the scan tool, monitor Temperature/Pressure MAP Sensor, EGR Orifice Temperature Sensor and Coolant Temperature Sensor. NOTE: Make sure ambient air temperature is above -6.7°C (20°F) when performing this test. NOTE: Make sure there is no external heat source, such as a block heater, operating during this test or within the 8 hour cold soak. Does the CAC Temperature Sensor read differently from the other sensors? Yes • Replace the Temperature/Pressure MAP Sensor in accordance with the Service Information.(Refer to 14 - Fuel System/Fuel Injection/SENSOR, TMAP-Intake Manifold/Removal) • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Go To 5 5. TEMPERATURE/PRESSURE MAP SENSOR 1. Turn the ignition off. 2. Disconnect the Temperature/Pressure MAP Sensor harness connector. 3. Remove the Temperature/Pressure MAP Sensor and reconnect the wiring to the sensor. 4. Turn the ignition on. 5. With the scan tool in Sensors, monitor the Temperature/Pressure MAP Sensor while heating the sensor with an external heat source (DO NOT USE OPEN FLAME). Does the reading from the sensor increase at least 5°F on the scan tool? Yes • Go To 6 No • Replace the Temperature/Pressure MAP Sensor in accordance with the Service Information.(Refer to 14 - Fuel System/Fuel Injection/SENSOR, TMAP-Intake Manifold/Removal) • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). 6. POWERTRAIN CONTROL MODULE 1. Disconnect all PCM harness connectors. 2. Disconnect all related in-line harness connections (if equipped). 3. Disconnect the related component harness connectors. 4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions: • Proper connector installation. • Damaged connector locks. • Corrosion. • Other signs of water intrusion. • Weather seal damage (if equipped). • Bent terminals. • Overheating due to a poor connection (terminal may be discolored due to excessive current draw). • Terminals that have been pushed back into the connector cavity. • Perform a terminal drag test on each connector terminal to verify proper terminal tension. Repair any conditions that are found. 5. Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged. 6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged. 7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged. 8. With the scan tool, erase DTCs. 9. Using the recorded Freeze Frame and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC. 10. With the scan tool, read PCM DTCs. Did the DTC return? Yes • Replace the Powertrain Control Module (PCM) in accordance with the Service Information. (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, Powertrain Control/Removal) . • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure). No • Test complete. • Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).