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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 195 (Automatic Transmission, Transfer Case And Power Transfer Unit - 6-Speed Automatic Transmission - 6R140 (2 Of 2)) >> Diagnosis And Testing >> Diagnostic Trouble Code (DTC) Charts and Pinpoint Tests - 6.8L Triton-30V - V10 >> Pinpoint Tests >> Pinpoint Test R : DTC P1636

Pinpoint Test R : DTC P1636

WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
  1. Normal Operation and Fault Conditions 

    The PCM contains an ADLR solenoid driver, which is a chip that control the low sides of the solenoid circuits to provide the commanded current. The main processor in the PCM communicates with the ADLR driver over a serial interface. The main processor sends the desired solenoid state, and the ADLR driver returns circuit fault status information.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    PCM P1636:00 Inductive Signature Chip Communication Error: No Sub Type Information This DTC indicates an internal PCM loss of communication with the low side solenoid drivers. When communication is lost, the solenoid states become unknown, so the PCM opens the high side of the circuit. This allows only park, reverse, neutral and 5M, with the TCC unlocked and maximum line pressure.

    Possible Sources 

    • PCM fault

  2. R1 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DTC (DIAGNOSTIC TROUBLE CODE) P1636

    • Ignition ON.

    • Using a diagnostic scan tool, clear the DTC from the PCM.

    • Repeat the following steps 2 times.

      • Start the engine.

      • Select Drive.

      • Wait 5 seconds.

      • Select Reverse.

      • Wait 5 seconds.

      • Select Park.

      • Ignition OFF.

    • Using a diagnostic scan tool, carry out the KOEO and KOER PCM self-tests.

    Is DTC P1636 present in the PCM? 

    Yes  Refer to PCM GUIDED ROUTINE TESTING After programming the new PCM, CARRY OUT the transmission strategy download. REFER to: Transmission Strategy Download .
    No  GO to  R2

  3. R2 ROAD TEST THE VEHICLE AND RECHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DTC (DIAGNOSTIC TROUBLE CODE) P1636

    • Road test the vehicle.

    • Ignition OFF.

    • Road test the vehicle a second time.

    • Using a diagnostic scan tool, carry out the KOEO and KOER PCM self-tests.

    Is DTC P1636 present in the PCM? 

    Yes  Refer to PCM GUIDED ROUTINE TESTING After programming the new PCM, CARRY OUT the transmission strategy download. REFER to: Transmission Strategy Download .
    No  The fault is not present at this time.
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