2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1720
1. Observe the DTC information with a scan tool. DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 should not set.
2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Observe the DTC information with a scan tool.
瀚慖f DTC P0602 is set, attempt to program the K20 ECM before replacing the K20 ECM. Refer to Control Module References (See:
Testing and Inspection/Programming and Relearning) for K20 ECM replacement, setup, and programming.
瀚慖f DTC P0602 resets, replace the K20 ECM.
2. Observe the DTC information with a scan tool. DTC P0601, P0603, P0604, P0605, P0606, P0607, P060D, P062F, or P2610 should not set.
瀚慖f a DTC failed this ignition, replace the K20 ECM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, programming and setup
Fuel Pump Control Module
DTC P0601-P0604, P0606, or P062F
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 (ROM)
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 Performance
DTC P062F
- Control Module Long Term Memory Performance
Circuit/System Description
The internal fault detection is handled inside the fuel pump control module. No external circuits are involved.
Conditions for Running the DTC
The fuel pump control module runs the program to detect an internal fault when power up is commanded. 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
The fuel pump control module has detected an internal malfunction.
