Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Heated Seats Schematics Connector End View Reference: Power Seat Connector End Views DEFINITION: The driver or passenger heated seat is inoperative. | ||||
1 | Did you review the Heated Seat System Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms - Seats |
2 |
Does the heated seat operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Does the heated seat switch indicator illuminate when the switch is turned ON? | -- | Go to Step 6 | Go to Step 4 |
4 | Test the heated seat switch ignition voltage supply circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 5 |
5 | Test the heated seat switch ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 11 |
6 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 10 |
7 | Test the heated seat battery positive voltage supply circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 8 |
8 | Test the heated seat ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 9 |
9 |
Is the resistance within the specified values? | 0.5-2 ohms | Go to Step 15 | Go to Step 13 |
10 | Test the heated seat switch signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 11 |
11 | Inspect for poor connections at 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? | -- | Go to Step 17 | Go to Step 12 |
12 | Replace the heated seat switch. Is the repair complete? | -- | Go to Step 17 | -- |
13 | Inspect for poor connections at the heated seat back element connector. 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 17 | Go to Step 14 |
14 | Replace the heated seat back element. Refer to Driver Seat and Passenger Seat Back Cushion Heater Replacement . Is the repair complete? | -- | Go to Step 17 | -- |
15 | Inspect for poor connections at the heated seat cushion 4 way connector. 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 17 | Go to Step 16 |
16 | Replace the heated seat cushion element. Refer to Driver Seat and Passenger Seat Cushion Heater Replacement . Is the repair complete? | -- | Go to Step 17 | -- |
17 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
