2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2582
Sensor/Service and Repair)
* Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (Non-HP2) (See: Heating and Air Conditioning/Refrigerant Pressure
Sensor / Switch/Service and Repair/Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement)Air Conditioning (A/C) Refrigerant
Pressure Sensor Replacement (HP2) (See: Heating and Air Conditioning/Refrigerant Pressure Sensor / Switch/Service and Repair/Air
Conditioning (A/C) Refrigerant Pressure Sensor Replacement)
* Barometric Pressure Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Barometric Pressure
Sensor/Service and Repair)
* Camshaft Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Camshaft Position Sensor/Service
and Repair)
* Crankshaft Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Crankshaft Position
Sensor/Service and Repair)
* Engine Oil Pressure Sensor and/or Switch Replacement (See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Pressure
Sensor/Service and Repair)
* Fuel Tank Pressure Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Fuel Tank Pressure Sensor/Service
and Repair)
* Manifold Absolute Pressure Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Manifold
Pressure/Vacuum Sensor/Service and Repair)
* Throttle Body Assembly Replacement (See: Powertrain Management/Fuel Delivery and Air Induction/Throttle Body/Service and
Repair/Removal and Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming
P0652
DTC P0642, P0643, P0652, or P0653
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 Descriptor
DTC P0642
- 5 Volt Reference 1 Circuit Low Voltage
DTC P0643
- 5 Volt Reference 1 Circuit High Voltage
DTC P0652
- 5 Volt Reference 2 Circuit Low Voltage
DTC P0653
- 5 Volt Reference 2 Circuit High Voltage
Circuit/System Description
The drive motor generator power inverter module (PIM) contains two motor control modules (MCM) and a hybrid powertrain control module
(HPCM). Each MCM utilizes a 5 Volt reference power supply for internal circuit needs. 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 8-18V.
Conditions for Setting the DTC
The control module has detected an internal malfunction.
Action Taken When the DTC Sets
* DTCs P0642, P0643, P0652 and P0653 are Type A DTCs.
* The PIM commands the battery energy control module (BECM) to open the high voltage contactor relays.
Conditions for Clearing the DTC
Mercedes Benz Diagnostic and Repair Information ,Wiring Diagrams. DTC. TSB. Types: TSB, DTC, Wiring Diagrams, OEM Procedures. Trusted by more than 400,000 technicians. OEM accurate fix for faster repairs. Repair Procedures and Labor Times. Factory Auto Repair info. Request A Demo Today. Factory-Correct Diagrams. Factory Part Numbers. Maintenance Schedules. Repair Procedures. Labor Times. Types: TSB, DTC.Mercedes,Mercedes,Benz,Mercedes-Benz UK,A,Class,B,Class,C,Class,E,Class,CLA,CLS,G,Class,GLA,A
Monday, February 24, 2020
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2582
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