2010 Cadillac Truck SRX FWD V6-3.0L Page 1586

2010 Cadillac Truck SRX FWD V6-3.0L Page 1586

Inspection/Programming and Relearning) any time a transmission related component is serviced.

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for control solenoid (w/body and TCM) valve assembly

replacement, setup, and programming

AF40-6 - Automatic Transmission

DTC P0601, P0602, P0603, or P0604

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC P0601

- Control Module Read Only Memory Performance

DTC P0602

- Control Module Not Programmed

DTC P0603

- Control Module Long Term Memory Reset

DTC P0604

- Control Module Random Access Memory Performance

Circuit/System Description

This is an internal fault detection of the transmission control module (TCM). This fault is handled inside the TCM and no external circuits are

involved.

Conditions for Running the DTC

The TCM runs the program to detect an internal condition at key ON. The only requirements are voltage and ground. This program runs even if the

voltage is out of the valid operating range.

Conditions for Setting the DTC

P0601

The read only memory (ROM) test has failed 5 or more times.

P0602

The TCM has been unable to detected the start program.

P0603

The TCM has detected a memory checksum error.

P0604

The TCM random access memory (RAM) test has failed 5 or more times.

Action Taken When the DTC Sets

P0601, P0602, P0603, P0604

* DTCs P0601, P0603, P0604 are Type A DTCs.

* The TCM commands maximum line pressure.

* The TCM forces the torque converter clutch (TCC) OFF.

* The TCM inhibits TCC engagement.