Pinpoint Test T: The Heated Seat Does Not Operate Correctly - Right Rear Heated Seat Indicator Is Always On

Seats

Pinpoint Tests

Pinpoint Test T: The Heated Seat Does Not Operate Correctly - Right Rear Heated Seat Indicator is Always On

Refer to Wiring Diagram Set 119, Climate Controlled Seats for schematic and connector information. Diagrams By Number

Normal Operation

Pressing the right rear heated seat switch once in either the high or low mode will command on the left rear heated seat. Voltage is then supplied to the left rear heated seat switch from the heated seat module on either circuit CHS52 (BU) (high heat mode) or circuit CHS53 (WH/BN) (low heat mode) illuminating the switch indicator. Pressing the right rear heated seat switch again in the mode that is currently on will set the right rear heated seat to off and also turn that LED off.

A new heated seat module must be configured after installation for correct operation. To configure, press the low heat mode button on the either rear heated seat switch. Module configuration will occur automatically after the low heat mode button is pressed. Until the module is correctly configured, the heated seats will operate incorrectly when selecting the high heat mode by following a sequence of high, low and off with each button press. The system will operate correctly after the heated seat module receives a low heat request on either of the low heat request circuits and rear heated seat module configuration is activated.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Heated seat module



PINPOINT TEST T: THE HEATED SEAT DOES NOT OPERATE CORRECTLY - RIGHT REAR HEATED SEAT INDICATOR IS ALWAYS ON

-------------------------------------------------
T1 CHECK CIRCUITS CHS53 (WH/BN) AND CHS52 (BU) FOR A SHORT TO VOLTAGE


- Disconnect: Heated Seat Module C3304a.
- Did the affected high or low indicator LED turn off when the heated seat module was disconnected?

Yes
INSTALL a new heated seat module. REFER to Heated Seat Module - Rear Heated Seat Module - Rear. TEST the system for normal operation.

No
REPAIR circuit CHS53 (WH/BN) or CHS52 (BU) for a short to voltage. TEST the system for normal operation.

-------------------------------------------------