2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2432
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
Note: If an UXXXX DTCs are set, diagnose those first.
1. 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
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.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
P1400
DTC P1400
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.
DTC Descriptor
DTC P1400
- Cold Start Emission Reduction Control System
Circuit/System Description
The catalytic converter must be warmed to efficiently reduce the emissions. The cold start strategy is to reduce the amount of time it takes to warm
the catalytic converter. During a cold start, the engine idle speed is elevated and spark timing is retarded to allow the catalyst to warm quickly. This
diagnostic monitors the following to build an exhaust energy model:
