Drink Holders: Testing and Inspection

Heated/Cooled Cup Holder Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.

Diagnostic Fault Information






Circuit/System Description

The Heated/Cooled cup holder system uses a positive temperature coefficient (PTC) ceramic element. The PTC is attached to the side of an aluminum cylinder that forms the cup holder to provide the temperature change. B+ will either heat or cool the PTC element in the cup holder. Voltage applied in one direction heats the element and cools it when the polarity is reversed. A momentary switch on the console surface operates the unit. It offers off, heat and cool settings. The cup holders have a temperature range that heats to 140°F or cools to 35°F. A light in the switch glows red to indicate heating and blue to indicate cooling.

Reference Information
Schematic Reference

Heated/Cooled Cup Holder Schematics Electrical Diagrams
Connector End View Reference

Component Connector End Views Connector End Views By Name
Description and Operation

Heated/Cooled Cup Holder Description and Operation Description and Operation
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Programming and Relearningfor scan tool information

Diagnostic Aids

If heating or cooling is insufficient make sure the air vents on either side of the console are not blocked in any way.

Circuit/System Verification

Ignition ON, turn the Heated/Cooled cup holder ON. Feel the inside of the Heated/Cooled cup holder it should feel warm or cool to the touch within a few minutes depending on the switch position.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the Heated/Cooled cup holder.
2. Test for less than 10 ohms between the ground circuit terminal A and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. 2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal D and ground.

• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test or replace the Heated/Cooled cup holder.

4. If all circuits test normal, test or replace the Heated/Cooled cup holder.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Floor Console Bezel Replacement