C0237

CIRCUIT DESCRIPTION
The throttle position signal is used by the Accelerator and Servo Control Module (ASM) to control the actual throttle position that is requested by the Electronic Brake Traction Control Module (EBTCM).

CONDITIONS FOR SETTING THE DTC
^ Diagnostic Trouble Code (DTC) C0237 will set if the Accelerator and Servo Control Module (ASM) is not receiving a reference voltage.
^ DTC C0237 will set if the reference signal is outside of a specified range.

ACTION TAKEN WHEN THE DTC SETS
^ A malfunction Diagnostic Trouble Code (DTC) is stored.
^ The Traction Control System (TCS) is disabled.
^ The amber TCS indicator will turn on.

CONDITIONS FOR CLEARING THE DTC
^ Condition for Diagnostic Trouble Code (DTC) is no longer present and Scan tool clear DTC function is used.
^ 100 ignition cycles have passed with no DTCs detected.

DIAGNOSTIC AIDS
^ It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ If an intermittent malfunction exists refer to General Electrical Diagnosis in Diagnostic Aids.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
3. This step checks for an open in CKT 417.
5. This step checks for an open in CKT 596.
7. This step checks for an open in CKT 452.