2010 Cadillac CTS Sedan AWD V6-3.6L Page 967

2010 Cadillac CTS Sedan AWD V6-3.6L Page 967

- Control Module Long Term Memory Performance

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).

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2551

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2551

- Control Module Long Term Memory Performance

DTC P16F3

- Control Module Redundant Memory Performance

DTC P2610

- Control Module Ignition Off Timer Performance

Circuit/System Description

This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM) and the throttle actuator control

(TAC) system. This diagnostic also addresses if the ECM is not programmed.

The ECM monitors its ability to read and write to the memory. It also monitors a timing function. The ECM and the TAC processors are used to

monitor the TAC system data. Both processors monitor the other processors data to verify that the indicated APP calculation is correct. The ECM

performs an intrusive test in order to confirm that the APP signals are not shorted together. The ECM accomplishes this by pulling the APP sensor

2 low momentarily and looking for sensor 1 to also be pulled low.

Conditions for Running the DTC

P0601, P0604

* The ignition is in Run or Crank.

* These DTCs run continuously when the above condition is met.

P0602, P0603, P062F

* The ignition is in Run or Crank.

* These DTCs run once per ignition cycle.

P0606, P0607

* The ignition switch is in Run or Crank positions.

* The system voltage is more than 6.0 V.

* These DTCs run continuously when the above conditions are met.

P060D

* The ignition switch is in Run or Crank.

* The system voltage is more than 6.0 V.

* Reduced engine power is inactive.

* DTCs P2120, P2122, P2123, P2125, P2127, P2128, P2138 are not set.

* DTC P060D runs continuously when the above conditions are met.

P16F3

* The ignition is ON or the engine is operating.

* DTC P16F3 runs continuously when the above condition is met.

P2610

* The intake air temperature is between -40 to +125掳C (-40 to +257掳F).

* DTC P2610 runs on ECM Power Down.

Conditions for Setting the DTC

The ECM detects an internal failure or incomplete programming for more than 10 s.

Actions Taken When the DTC Sets

* DTCs P0601, P0602, P0603, P0604, P0606, P060D, P062F, and P16F3 are Type A DTCs.

* DTC P0607 is a Type C DTC.

* DTC P2610 is a Type B DTC.

Conditions for Clearing the MIL/DTC

* DTCs P0601, P0602, P0603, P0604, P0606, P060D, P062F, and P16F3 are Type A DTCs.

* DTC P0607 is a Type C DTC.

* DTC P2610 is a Type B DTC.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference