2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1594
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
If the circuit tests normal, perform the High Voltage Disabling () procedure and test the HVIC Return circuit for a short to voltage between X350
and BECM connector X1. If the circuit tests normal, replace the BECM.
5. If all circuits test normal, replace the PIM.
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 PIM or BECM replacement, setup, and programming
P1AE4
DTC P1AE2-P1AE4, P1B05, or P1B06
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 P1AE2
- Battery Energy Control Module High Voltage System Interlock Circuit
DTC P1AE3
- Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage
DTC P1AE4
- Battery Energy Control Module High Voltage System Interlock Circuit High Voltage
DTC P1B05
- Drive Motor 1 Control Module High Voltage System Interlock Circuit
DTC P1B06
- Drive Motor 2 Control Module High Voltage System Interlock Circuit
Diagnostic Fault Information
Typical Scan Tool Data
