LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2012 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Transmission Control Module (TCM) - DTCS P1D94 To U1479 - 8HP45 Automatic Transmission) >> Diagnosis And Testing >> P1DFA-Actual Increase Of Engine Torque - High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR TCM CAN BUS DTCS 
    1. With the scan tool, read TCM DTCs.

      Are any TCM CAN BUS DTCs present?

      Yes 

      • Refer to DIAGNOSIS AND TESTING  and perform the appropriate repair for those DTCs first. Perform the diagnostic procedure for DTC U0001-CAN C BUS first if the fault is present.
      • Refer to STANDARD PROCEDURE and perform the TRANSMISSION VERIFICATION TEST.

      No 

      • Go To  2.
  2. CHECK IF PCM DTCS ARE PRESENT 
    1. With the scan tool, read PCM DTCs.

      Are any PCM DTCs present?

      Yes 

      • Refer to  DTC INDEX  and perform the appropriate diagnostic procedure.
      • Refer to STANDARD PROCEDURE and perform the TRANSMISSION VERIFICATION TEST.

      No 

      • Using the schematics as a guide, check the Transmission Control Module A (TCMA) terminals for corrosion, damage or terminal push out. If no problems are found, replace and program the TCMA in accordance with the Service Information. Refer to VALVE BODY, REMOVAL .
      • Refer to STANDARD PROCEDURE and perform the TRANSMISSION VERIFICATION TEST.