2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2156
- 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.
Diagnostic Aids
Low voltage or a momentary loss of power or ground to the ECM may cause a DTC to set.
* Verify that the battery cables are clean and tight, and the battery is fully charged. Refer to Battery Inspection/Test (See: Starting and
Charging/Testing and Inspection/Component Tests and General Diagnostics/Battery Inspection/Test).
* Verify the ECM ground circuits do not have an open or high resistance.
* Verify the ECM power circuits do not have an open, short to ground, or high resistance.
Reference Information
Schematic Reference
Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
