2010 Cadillac CTS Sedan AWD V6-3.0L Page 1499
Circuit/System Description
This is an internal fault detection of the control solenoid valve assembly. This fault is carried out inside the control solenoid valve assembly and no
external circuits are involved.
Conditions for Running the DTC
* DTCs P0601, P0602, P0603, P0604, or P062F are not set.
* Ignition voltage is 8.6 volts or greater.
Conditions for Setting the DTC
P0601
The read only memory (ROM) test has failed 5 or more times.
P0602
The transmission control module (TCM) has not been programmed.
P0603
The TCM has detected a memory checksum error.
P0604
The TCM random access memory (RAM) test has failed 5 or more times.
P062F
The TCM has detected non-volatile memory is incorrect during power-down.
Action Taken When the DTC Sets
* DTCs P0601, P0602, P0603, P0604, and P062F are Type A DTCs.
* The TCM shifts to a default gear, shuts down, and turns OFF.
Conditions for Clearing the DTC
DTCs P0601, P0602, P0603, P0604, and P062F are Type A DTCs.
Reference Information
Description and Operation
Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/Electronic
Component Description)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Circuit/System Verification
1. Ignition OFF for one minute.
Caution: Before programming a control module, the following must be observed, or control module damage may occur:
* The Tech 2 and the terminal must have the latest software.
* The vehicle battery must be fully charged. The battery voltage should be between 12-14 volts.
* The Tech 2 and the terminal cable connections must be secure.
* A battery charger must NOT be connected to the battery when programming a control module.
2. Ignition ON, with a scan tool verify that DTC P0602 is not set.
瀚慖f DTC P0602 is set, program the transmission control module. Refer to Service Programming System (SPS) (See: Testing and
Inspection/Programming and Relearning/Service Programming System (SPS)) and Control Solenoid Valve and Transmission Control
Module Assembly Programming and Setup (6L45/6L50/6L80/6L90) (See: Powertrain Management/Transmission Control
Systems/Relays and Modules - Transmission and Drivetrain/Relays and Modules - A/T/Control Module/Testing and Inspection).
