2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1582
DTC Descriptor
DTC P1ADE
- Drive Motor 1 Control Module System Voltage Low
DTC P1AE0
- Drive Motor 2 Control Module System Voltage Low
Circuit/System Description
The drive motor generator power inverter module (PIM) contains two motor control modules (MCM) and a hybrid powertrain control module
(HPCM). The HPCM and both MCMs share the PIM ignition voltage circuit, battery voltage circuits and chassis ground.
Conditions for Running the DTC
Ignition is ON
Conditions for Setting the DTC
MCM ignition voltage is less than 7.7 V for 1 second.
Action Taken When the DTC Sets
DTCs P1ADE and P1AE0 are Type C DTCs.
Conditions for Clearing the DTC
DTCs P1ADE and P1AE0 are Type C 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)
Circuit/System Verification
1. Clear the DTC information.
2. Turn the ignition OFF for 1 minute.
3. Turn the ignition ON.
4. Retest for DTCs P1ADE and P1AE0.
Circuit/System Testing
Test for HPCM DTC P0562.
Perform HPCM P0562 diagnosis if set.
If HPCM P0562 is not set, 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 replacement, setup, and programming.
P1AE2
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.
