GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Thermo Cooler/Cupholder Schematics

Connector End View Reference: Inline Harness Connector End Views

1

Important: The battery monitor will cut off current to the thermoelectric cooler if the battery voltage drops below 11.6 volts.

Test the thermo cooler power feed circuit for a short to voltage, short to ground, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 6

Go to Step 2

2

Inspect for poor connections at the harness connector at the thermo cooler and at the inline connector on the console harness. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 6

Go to Step 3

3

Inspect the thermo cooler for proper operation

Is the thermo cooler operating properly?

Go to Step 5

Go to Step 4

4

Replace the thermo cooler.

Did you complete the replacement?

Go to Step 6

--

5

Replace the thermal cooler switch. Refer to Switch Replacement - Hot and Cold Cupholder

Did you complete the replacement?

Go to Step 6

--

6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 1