2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1944

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1944

Action Taken When the DTC Sets

DTC P0218 is a Type C DTC.

Conditions for Clearing the DTC

DTC P0218 is a Type C DTC.

Diagnostic Aids

The driver information center (DIC), if equipped, will display 'TRANSMISSION HOT- Idle Engine' when the transmission fluid temperature

reaches 132掳C (270掳F). The Transmission Fluid Temperature parameter on the scan tool should rise steadily to a normal operating temperature, and

then stabilize. Ask about the customer's driving habits, trailer towing, etc. Trailer towing should occur in D4. Ensure the engine cooling system is

functioning normally.

Reference Information

Description and Operation

* Transmission General Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission General Description)

* Transmission Indicators and Messages (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission Indicators and Messages)

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. Review the Failure Records when the DTC set. Verify the engine coolant temperature was less than 125掳C (257掳F).

瀚慖f greater than the specified range, refer to Engine Overheating (See: Engine, Cooling and Exhaust/Cooling System/Testing and

Inspection/Symptom Related Diagnostic Procedures/Engine Overheating).

2. Inspect the transmission cooling system for restrictions or damage.

3. Perform the Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing

and Inspection/Initial Inspection and Diagnostic Overview/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission Fluid Level and

Condition Check) to verify correct fluid level and condition.

4. Perform the Transmission Fluid Cooler Flushing and Flow Test (See: Maintenance/Fluids/Fluid - A/T/Testing and Inspection), to verify

correct transmission oil cooler flow.

5. Perform the Line Pressure Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component

Tests and General Diagnostics/6L45/6L50/6L80/6L90 - Automatic Transmission/Line Pressure Check), to verify correct transmission line

pressure.

6. 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.

Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and

Inspection/Programming and Relearning) following all transmission related repairs.

2ML70 - Automatic Transmission

DTC P0218

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.