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  • P0699 Accelerator Pedal Position Sensor (APPS) Supply Voltage Too High

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    Mopar1973Man

    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

    1. 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
    2. 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
    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).
    4. 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).
    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 (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
    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).
    7. 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).


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