Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the heated seat operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 |
Does the voltage measure within the specified range? | 10-15 V | Go to Step 3 | Go to Step 18 |
3 | Measure the voltage from the battery positive voltage (B+) circuit of the heated seat module to the ground circuit of the heated seat module. Does the voltage measure within the specified range? | 10-15 V | Go to Step 4 | Go to Step 22 |
4 |
Does the voltage measure within the specified range? | 10-15 V | Go to Step 5 | Go to Step 23 |
5 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 6 | Go to Step 31 |
6 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 7 | Go to Step 8 |
7 | Test the OFF Switch signal circuit at the heated seat module connector for a short to ground. Does the resistance measure greater than the specified value? | 5 ohms | Go to Step 13 | Go to Step 9 |
8 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 10 | Go to Step 24 |
9 | Test the OFF Switch signal circuit between the heated seat switch and the heated seat module for a short to ground. Does the resistance measure greater than the specified value? | 5 ohms | Go to Step 12 | Go to Step 11 |
10 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 22 | Go to Step 25 |
11 |
Does the resistance measure less than the specified value? | 5 ohms | Go to Step 22 | Go to Step 25 |
12 | Repair the short to ground. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 33 | -- |
13 |
Does the resistance measure less than the specified value? | 5-10 ohms | Go to Step 15 | Go to Step 14 |
14 |
Is the resistance less than the specified value? | 5 ohms | Go to Step 29 | Go to Step 27 |
15 | Test the resistance between the Temperature Sensor signal circuit and the ground circuit of the heated seat cushion. Important: If the resistance is measured with the seat still warm, the resistance may vary outside of the specified range since the thermistor resistance varies with temperature. Does the resistance measure within the specified range? | 850-11,500 ohms | Go to Step 16 | Go to Step 29 |
16 | Inspect for poor connections at the harness connector of the heated seat module. 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 33 | Go to Step 17 |
17 | Replace the heated seat module. Refer to Front Seat Heater Control Module Replacement Did you complete the replacement? | -- | Go to Step 33 | -- |
18 | Check HTDST LF Fuse (LH) or HTDST RF Fuse (RH) for an open. Does the fuse test OK? | -- | Go to Step 21 | Go to Step 19 |
19 | Repair the short to ground in the appropriate Battery Positive (B+) voltage circuit to the heated seat module. Refer to Wiring Repairs Did you complete the repair? | -- | Go to Step 20 | -- |
20 | Replace HTDST LF Fuse (LH) or HTDST RF Fuse (RH). Refer to Wiring Repairs in Wiring Systems. Did you complete the replacement? | -- | Go to Step 33 | -- |
21 | Repair the open in the appropriate Battery Positive (B+) voltage circuit between the rear fuse block and the heated seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 33 | -- |
22 | Repair the open in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 33 | -- |
23 | Repair the open in the Ignition Positive Voltage circuit between the rear fuse block and the heated seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 33 | -- |
24 | Repair the open in the Hi/Low Heated Seat Switch control circuit between the heated seat switch and the heated seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 33 | -- |
25 | 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? | -- | Go to Step 33 | Go to Step 26 |
26 | Replace the heated seat switch. Refer to Heated Seat Switch Replacement . Did you complete the replacement? | -- | Go to Step 33 | -- |
27 | Inspect for poor connections at the harness connector of the heated seat back. 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 33 | Go to Step 28 |
28 | Replace the heated seat back. Refer to Front Seat Heater Element Replacement Did you complete the replacement? | -- | Go to Step 33 | -- |
29 | Inspect for poor connections at the harness connector of the heated seat cushion. 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 33 | Go to Step 30 |
30 | Replace the heated seat cushion. Refer to Front Seat Heater Element Replacement Did you complete the replacement? | -- | Go to Step 33 | -- |
31 | Inspect for poor connections at the harness connector of the rear integration module (RIM). 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 33 | -- |
32 | Replace the rear integration module (RIM). Refer to Rear Integration Body Control Module Replacement Did you complete the replacement? | -- | Go to Step 33 | -- |
33 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
