| • | Refer to
LH Front Heated Seats (Partial)
|
| • | Refer to
RH Front Heated Seats (Partial)
|
| • | Refer to
LH Rear Heated Seats (Partial)
|
| • | Refer to
RH Rear Heated Seats (Partial)
|
Circuit Description
The heated seat temperature switch is normally open. When the temperature switch is pressed, it momentarily switches a battery positive voltage (B+) to the temperature input of the door module. The door module then momentarily grounds the temperature input of the heated seat module. The heated seat module examines the input to determine the change in the heated seat temperature setting.
Conditions for Running the DTC
The door module must be powered and can not have B1328-Battery Voltage High or B1327-Battery Voltage Low set as an active DTC for this DTC to set.
Conditions for Setting the DTC
If the door module detects that a heated seat switch input circuit is shorted to battery positive (B+) for 30 continuous seconds, the switch will be considered shorted and the DTC will set.
Action Taken When the DTC Sets
After the initial heated seat activation, no other heated seat switch activations shall be recognized as a result of this switch input staying active (shorted to voltage).
Conditions for Clearing the DTC
The DTC automatically clears when the switch circuit setting the DTC is no longer active.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Power Seat Systems? | -- | ||
Does the scan tool display OFF? | -- | |||
3 |
Does the Heated Seat Temperature parameter change state? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | |
4 |
Does the scan tool display OFF? | -- | ||
5 | Test the heated seat temperature input circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
6 | Inspect for poor connections at the harness connector of the door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
7 | Inspect for poor connections at the harness connector of the heated seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
8 | Replace the door module. Refer to Door Control Module Replacement in Doors. Did you complete the replacement? | -- | -- | |
9 | Replace the heated seat switch. Refer to Front Seat Heater Switch Replacement or Rear Seat Heater Switch Replacement . Did you complete the replacement? | -- | -- | |
10 |
Does the DTC reset? | -- | System OK |
