2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2531

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2531

DTC P0602

- Control Module Not Programmed

DTC P0603

- Control Module Long Term Memory Reset

DTC P0604

- Control Module Random Access Memory Performance

DTC P0606

- Control Module Processor Performance

DTC P0607

- Control Module Performance

DTC P060D

- Control Module Accelerator Pedal (APP) Position System Circuitry Performance

DTC P062F

- Control Module Long Term 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 DTCs

P0601, P0604

* The ignition switch is in Run or Crank.

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

P0602, P0603, P062F

* The ignition switch is in Run or Crank.

* These DTCs run once per ignition cycle.

P0606, P0607, P060D

* The ignition switch is in Run or Crank.

* The system voltage is more than 6.0 V.

* Reduced Engine Power is not active.

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

P2610

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

* DTC P2610 runs once per ignition cycle on ECM power down.

Conditions for Setting the DTCs

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, and P062F 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, and P062F are Type A DTCs.

* DTC P0607 is a Type C DTC.

* DTC P2610 is a Type B DTC.

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2184

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2184

DTC P0602

- Control Module Not Programmed

DTC P0603

- Control Module Long Term Memory Reset

DTC P0604

- Control Module Random Access Memory (RAM)

DTC P0606

- Control Module Internal Control Module Performance

DTC P062F

- Control Module Long Term Memory Performance

Circuit/System Description

This is an internal fault detection of the power inverter module (PIM). This fault is handled inside the PIM and no external circuits are involved.

Conditions for Running the DTC

* The control module runs the program to detect an internal fault when the key is ON.

* Ignition voltage is 7V or greater.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

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

* The hybrid powertrain control module (HPCM) commands the battery energy control module (BECM) to open the high voltage contactor

relays.

Conditions for Clearing the DTC

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

Reference Information

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Circuit/System Verification

1. Test for HPCM DTC P0562.

瀚慞erform HPCM P0562 diagnosis if set.

2. Clear the DTC information.

3. Ignition OFF for 1 minute.

4. Ignition ON.

5. Retest for DTCs P0601, P0602, P0603, P0604, P0606 and P062F.

Circuit/System Testing

1. Test for HPCM DTC P0562.