2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2230
* The TCM internal temperature has changed by less than 2.0掳C (3.6掳F) in 2 minutes.
* The transmission fluid temperature (TFT) is greater than 70掳C (158掳F).
* The TFT has increased by 55掳C (99掳F) since startup.
Condition 2
* Vehicle speed is 8 km/h (5 mph) or greater for 5 minutes.
* TCC slip speed is greater than 120 RPM for 5 minutes.
* The TCM internal temperature is between 120-150掳C (248-302掳F).
* The TCM internal temperature has changed by less than 2.0掳C (3.6掳F) in 2 minutes.
* The TFT is 70掳C (158掳F) or greater.
* The TFT has increased by 55掳C (99掳F) since startup.
Condition 3
The TCM internal temperature changes by 20掳C (36掳F) or greater 14 times over 7 seconds.
P0668
The TCM internal temperature is 249掳C (480掳F) or greater for 4 seconds or more.
P0669
The TCM internal temperature is -249掳C (-416掳F) or greater for 4 seconds or more.
Action Taken When the DTC Sets
* DTCs P0667, P0668, and P0669 are Type C DTCs.
* The TCM allows the vehicle to operate in transmission protection mode.
Conditions for Clearing the DTC
DTCs P0667, P0668, and P0669 are Type C DTCs.
Diagnostic Aids
During a road test, the TCM temperature should steadily increase to a normal operating temperature, and then stabilize.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Diagrams)
Connector End View Reference
* Component Connector End Views (See: Diagrams/Connector Views)
* Inline Harness Connector End Views (See: Power and Ground Distribution/Multiple Junction Connector/Diagrams)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Description and Operation
* Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and
Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Electronic Component Description)
* Transmission General Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and
Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission General Description)
* Transmission Component and System Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and
Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission Component and System Description)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Diagnostic Repair parts ,Wiring Diagrams. DTC. TSB,Car, Truck, SUV & Van Acura Chrysler Infiniti Maserati Rolls-Royce Alfa Romeo Dodge Jaguar Mazda Scion Aston Martin Ferrari Jeep McLaren Smart Audi Fiat Karma Mercedes-Benz Spyker BMW Ford Kia Mini Subaru Bentley Freightliner Lamborghini Mitsubishi Tesla Bugatti GMC Land Rover Mobility Ventures Toyota Buick Genesis Lexus Nissan Volkswagen Cadillac Honda Lincoln Porsche Volvo Chevrolet Hyundai Lotus Ram
Friday, November 20, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2230
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* The TCM internal temperature has changed by less than 2.0掳C (3.6掳F) in 2 minutes.,
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