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Electronic Shift Module (Esm) - Electrical Diagnostics: Other Dodge Challenger III

Communication Devices ~355 words

Monitor Conditions

  1. When Monitored: Continuously with the ignition on.

Set Conditions

  1. Set Condition: When monitored battery voltage drops below 6.0 volts.

Possible Causes

Possible Causes
VEHICLE CHARGING SYSTEM
(F902) IGNITION UNLOCK RUN START CIRCUIT
(Z912) GROUND CIRCUIT
SHIFT LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .

  1. When Monitored: Continuously with the ignition in the run position.
  1. Set Condition: When the monitored battery voltage rises above 16.0 volts.
Possible Causes
CHARGING SYSTEM DTCS
VEHICLE WAS JUMP STARTED INCORRECTLY
SYSTEM VOLTAGE HIGH
SHIFT LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .

  1. When Monitored: Continuously with the ignition in the run position.
  1. Set Condition: If the Shift Lever Assembly controller detects an invalid calibration (checksum value).
Possible Causes
SHIFTER LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .

  1. When Monitored: Continuously with the ignition on.
  1. Set Condition: The DTC will set if the high side driver detects a short to ground for 10 seconds.
Possible Causes
ENGINE BRAKE DTCS PRESENT
WIN DTCS PRESENT
(K321) BTSI CONTROL CIRCUIT SHORTED TO GROUND
(K321) BTSI CONTROL CIRCUIT OPEN
SHIFTER LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .

  1. When Monitored: Continuously with the ignition key on.
  1. Set Condition: The DTC will set if the high side driver detects an open load for 10 seconds.
Possible Causes
ENGINE BRAKE DTCS PRESENT
WIN DTCS PRESENT
(K321) BTSI CONTROL CIRCUIT SHORT TO VOLTAGE
SHIFTER LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .

  1. When Monitored: Continuously with the ignition in the run position.
  1. Set Condition: When the expected switch state is not correctly sensed by the Shift Lever Assembly. If the upshift switch signal is detected as active in gear position other than drive.
Possible Causes
SHIFT LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure

  1. When Monitored: Continuously when the ignition is in the run position.
  1. Set Condition: When the expected switch state is not correctly sensed by the Shifter Lever Assembly (SLA) Electronic Shift Module (ESM). If the Downshift switch signal is detected as active in gear position other than drive.
Possible Causes
SHIFTER LEVER ASSEMBLY

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .

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