Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Heated Seats Schematics | ||||
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 test lamp illuminate? | -- | Go to Step 4 | Go to Step 12 |
4 | Connect a test lamp test from the battery positive voltage supply circuit terminal in the heated seat control module connector to ground. Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 13 |
5 | Connect a test lamp from battery positive voltage to the heated seat control module connector ground circuit terminal. Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 14 |
6 |
Does the test lamp illuminate when the high/low switch is pressed? | -- | Go to Step 7 | Go to Step 15 |
7 |
Does the test lamp illuminate when the off switch is pressed? | -- | Go to Step 8 | Go to Step 17 |
8 | Connect a fused jumper wire from battery positive voltage to the high indicator control circuit terminal in the heated seat control module connector. Does the heated seat switch high indicator illuminate? | -- | Go to Step 9 | Go to Step 18 |
9 | Connect a fused jumper wire from battery positive voltage to the low indicator control circuit terminal in the heated seat control module connector. Does the heated seat switch low indicator illuminate? | -- | Go to Step 10 | Go to Step 19 |
10 | Test the resistance through the heated seat thermistor from the heated seat control module connector terminals. Is the resistance within the specified values? | 7K-12K ohms | Go to Step 11 | Go to Step 23 |
11 | Test the resistance through the heated seat heater elements from the heated seat control module connector terminals. Is the resistance within the specified values? | 2-3 ohms | Go to Step 24 | Go to Step 20 |
12 | Repair the ignition voltage supply circuit to the heated seat control module for an open or high resistance. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 25 | -- |
13 | Repair the battery positive voltage supply circuit to the heated seat control module for an open or high resistance. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 25 | -- |
14 | Repair the heated seat control module ground circuit for an open or high resistance. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 25 | -- |
15 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 16 |
16 | Test and repair the heated seat switch ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 21 |
17 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 21 |
18 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 21 |
19 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 21 |
20 |
Is the resistance within the specified values? | 0.5-2 ohms | Go to Step 23 | Go to Step 22 |
21 | Replace the heated seat switch. Is the repair complete? | -- | Go to Step 25 | -- |
22 | Replace the heated seat back element. Refer to Front Seat Heater Element Replacement . Is the repair complete? | -- | Go to Step 25 | -- |
23 | Replace the heated seat cushion element. Refer to Front Seat Heater Element Replacement . Is the repair complete? | -- | Go to Step 25 | -- |
24 | Replace the heated seat control module. Refer to Front Seat Heater Control Module Replacement . Is the repair complete? | -- | Go to Step 25 | -- |
25 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
