P0699 ACCELERATOR PEDAL POSITION SENSOR (APPS) SUPPLY VOLTAGE TOO HIGH
When Monitored and Set Condition:
When Monitored: While engine is running.
Set Condition: High voltage detected at the APPS supply circuit.
POSSIBLE CAUSES
- (K851) 5-VOLT SUPPLY OPEN
- (K851) 5-VOLT SUPPLY SHORT TO VOLTAGE
- ECM
- INTERMITTENT CONDITION
- (K852) 5-VOLT SUPPLY OPEN
- (K852) 5-VOLT SUPPLY SHORT TO VOLTAGE
- ECM
- INTERMITTENT CONDITION
DIAGNOSTIC PROCEDURE
-
The diesel engine uses two types of throttle position sensors, depending on transmission configuration and build. Is the throttle position sensor is located on the engine?
Yes --> Go To 2
No --> Go To 5 -
Turn the ignition off. Disconnect the APPS harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Ignition on, engine not running. Measure the voltage between the (K851) 5-volt supply circuit at the sensor connector and battery negative. Is the voltage between 4.5 and 5.5 volts?
Yes --> Replace the APPS. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
No --> Go To 3 -
Turn the ignition off. Disconnect the ECM harness connector(s).
NOTE: Check connectors - Clean/repair as necessary.
Ignition on, engine not running. Measure the voltage between the (K851) 5-volt supply circuit in the sensor harness connector and battery negative. Is the voltage less than 1 volt?
Yes --> Go To 4
No --> Repair or replace the wiring harness. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). -
Turn the ignition off. Reconnect the ECM harness connector(s). Ignition on, engine not running. Measure the voltage between the (K851) 5-volt supply circuit at the sensor harness connector and battery negative. Is the voltage greater than 6 volts?
Yes --> Replace and program the ECM in accordance with the Service Information. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
No --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure). Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). -
Turn the ignition off. Disconnect the APPS harness connector.
NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. Measure the voltage between the (K852) APPS #1 5-volt supply circuit at the sensor connector and battery negative. Is the voltage between 4.5 and 5.5 volts?
Yes --> Replace the APPS. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
No --> Go To 6 -
Turn the ignition off. Disconnect the ECM harness connector(s).
NOTE: Check connectors - Clean/repair as necessary.
Ignition on, engine not running. Measure the voltage between the (K852) APPS #1 5-volt supply circuit in the sensor harness connector and battery negative. Is the voltage less than 1 volt?
Yes --> Go To 7
No --> Repair or replace the wiring harness. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). -
Turn the ignition off. Reconnect the ECM harness connector(s). Ignition on, engine not running. Measure the voltage between the (K852) APPS #1 5-volt supply circuit at the sensor harness connector and battery negative. Is the voltage greater than 6 volts?
Yes --> Replace and program the ECM in accordance with the Service Information. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
No --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure). Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).