2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2792

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2792

* An EBCM malfunction exists for more than 10 s, preventing the ECM from receiving rough road detection data.

* Engine misfire is detected and DTC P0300 sets with the MIL illuminated.

Action Taken When the DTC Sets

DTCs P1380 and P1381 are Type C DTCs.

Conditions for Clearing the DTC

DTCs P1380 and P1381 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)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description ( See: Hybrid Drive

Systems/Description and Operation/Hybrid Modes of Operation).

2. Ignition ON, verify the scan tool hood position parameter displays Open.

瀚慖f the hood position does not display Open, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code

Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) for DTC P254F.

Note: If an UXXXX DTCs are set, diagnose those first.

3. Engine idling, observe the EBCM DTC information with a scan tool. EBCM DTCs should not set.

瀚慖f a DTC sets, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble

Code (DTC) List - Vehicle) for further diagnosis.

瀚慖f there are no EBCM DTCs set, refer to the following:

* Symptoms - Antilock Brake System (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and

Inspection/Symptom Related Diagnostic Procedures/Symptoms - Antilock Brake System) for the ABS - Hybrid

* Symptoms - Antilock Brake System (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and

Inspection/Symptom Related Diagnostic Procedures/Symptoms - Antilock Brake System) for the ABS - Non-Hybrid Less than 3900 kg

(8600 lb) GVW

* Symptoms - Antilock Brake System (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and

Inspection/Symptom Related Diagnostic Procedures/Symptoms - Antilock Brake System) for the ABS - Non-Hybrid Greater than/Equal

to 3900 kg (8600 lb) GVW

4. 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.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

P1381

DTC P1380 or P1381

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) provide an overview of each diagnostic category.