Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Driver Seat Schematics or Passenger Seat Schematics Connector End View Reference: Power Seat Connector End Views or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems DEFINITION: This test assumes that Load Shed Level 1 or Level 2 Heated Seats is not enabled. | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Verify that the Heated Seat Inoperative complaint is present. Does the heated seat system operate as described in the system description and operation? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the Heated Seat Relay parameter momentarily display On then Off? | -- | Go to Step 12 | Go to Step 4 |
4 | Does the Heated Seat Relay parameter display On? | -- | Go to Step 5 | Go to Step 16 |
5 |
Does the test lamp illuminate? | -- | Go to Step 8 | Go to Step 6 |
6 | Connect a test lamp from the battery positive voltage circuit of the heated seat relay to ground. Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 18 |
7 |
Does the test lamp illuminate? | -- | Go to Step 13 | Go to Step 17 |
8 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 9 | Go to Step 14 |
9 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 10 | Go to Step 15 |
10 | Test the heated seat element supply voltage circuit between the heated seat relay and the seat cushion heating element for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 11 |
11 | Test the heated seat element supply voltage circuit between the seat cushion and the seat back heating element for a 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 24 | |
12 | Test the heated seat relay control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 13 |
13 | Inspect for poor connections at the harness connector of the heated seat relay. 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 24 | Go to Step 20 |
14 | Inspect for poor connections at the harness connector of the heated seat cushion heating element/temperature sensor. 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 24 | Go to Step 21 |
15 | Inspect for poor connections at the harness connector of the seat back heating element. 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 24 | Go to Step 21 |
16 | Inspect for poor connections at the harness connector of the HVAC control module. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 22 |
17 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 23 |
18 | Repair the short to ground or open in the battery positive voltage circuit of the heated seat relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
19 | Repair the open in the ground circuit of the seat heating elements. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
20 | Replace the heated seat relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | -- | Go to Step 24 | -- |
21 | Replace the appropriate seat cushion heating element/temperature sensor or seat back heating element. Refer to Driver or Passenger Seat Back Cushion Heater Replacement and to Driver or Passenger Seat Cushion Heater Replacement . Did you complete the replacement? | -- | Go to Step 24 | -- |
22 | Replace the HVAC control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 24 | -- |
23 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 24 | -- |
24 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
