Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Heated/Cooled Seat Schematics Connector End View Reference: Heated/Cooled Seat Connector End Views | ||||
1 | Did you review the Heated Seats Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 | Operate the rear heated seat system. Does the system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 11 |
4 | Connect a test lamp test from the battery voltage supply circuit terminal in the heated seat control module harness connector to ground. Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 12 |
5 | Connect a test lamp from battery voltage to the ground circuit terminal in the heated seat control module harness connector. Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 13 |
6 |
Does the test lamp illuminate only while the heated seat switch is pressed? | -- | Go to Step 7 | Go to Step 14 |
7 | Connect a fused jumper wire from battery voltage to the high indicator control circuit terminal in the heated seat control module harness connector. Does the heated seat switch high indicator illuminate? | -- | Go to Step 8 | Go to Step 16 |
8 | Connect a fused jumper wire from battery voltage to the low indicator control circuit terminal in the heated seat control module harness connector. Does the heated seat switch low indicator illuminate? | -- | Go to Step 9 | Go to Step 17 |
9 | Test the resistance through the heated seat thermistor from the heated seat control module harness connector. Refer to Circuit Testing . Is the resistance within the specified values? | 7K-12K ohms | Go to Step 10 | Go to Step 18 |
10 | Test the resistance through the seat cushion heater element from the heated seat control module harness connector. Is the resistance less than the specified value? | 5 ohms | Go to Step 23 | Go to Step 18 |
11 | Repair the ignition voltage supply circuit to the heated seat control module for an open or short to ground. Refer to Wiring Repairs and to Connector Repairs . Is the repair complete? | -- | Go to Step 25 | -- |
12 | Repair the battery voltage supply circuit to the heated seat control module for an open or short to ground. Refer to Wiring Repairs and to Connector Repairs . Is the repair complete? | -- | Go to Step 25 | -- |
13 | Repair the heated seat control module ground circuit for an open or high resistance. Refer to Wiring Repairs and to Connector Repairs . Is the repair complete? | -- | Go to Step 25 | -- |
14 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 15 |
15 | Test the heated seat switch ground circuit for an open or high resistance. Refer to Circuit Testing . Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 19 |
16 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 19 |
17 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 19 |
18 |
Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 21 |
19 | Inspect for poor connections at the heated seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 20 |
20 | Replace the heated seat switch. Refer to Rear Seat Heater Switch Replacement . Is the repair complete? | -- | Go to Step 25 | -- |
21 | Inspect for poor connections at the seat cushion heater element connector. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 22 |
22 | Replace the seat cushion heater element. Refer to Rear Seat Cushion Heater Replacement . Is the repair complete? | -- | Go to Step 25 | -- |
23 | Inspect for poor connections at the heated seat control module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 24 |
24 | Replace the heated seat control module. 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 |
