Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Heated Seats Schematics | ||||
1 | Did you review the heated seat operation and perform the necessary inspections? | -- | Go to Symptoms | |
2 | Check the HTDST LF Fuse (LH) or the HTDST RF Fuse (RH) in the rear fuse block for an open. Is the HTDST LF Fuse (LF) or HTDST RF (RF) OK? | -- | ||
3 |
Does the voltage measure within the specified range? | 9-16 V | ||
4 | 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? | 9-16 V | ||
5 |
Does the voltage measure within the specified range? | 9-16 V | ||
6 |
Does the resistance measure less than the specified value? | 5 ohms | ||
7 | Test the heated seat switch input circuit between the heated seat module and the heated seat switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
8 |
Does the resistance measure less than the specified value? | 5 ohms | ||
9 |
Does the resistance measure less than the specified value? | 10 ohms | ||
10 |
Does the resistance measure less than the specified value? | 10 ohms | ||
11 | Measure the resistance between the temperature sensor signal circuit of the heated seat temperature sensor and the sensor ground circuit of the heated seat temperature sensor. 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? | 850-1150 ohms | ||
12 | 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? | -- | ||
13 | Inspect for poor connections at the harness connector of the heated 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? | -- | ||
14 | Inspect for poor connections at the harness connector of the heated seat cushion heating element. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
15 | 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? | -- | ||
16 | Repair short to ground in the appropriate battery positive voltage (B+) circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | ||
17 | Repair the open in the battery positive voltage (B+) circuit of the heated seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
18 | Repair the open in the ground circuit of the heated seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
19 | Repair the open in the ignition 3 voltage circuit of the heated seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
20 | Repair the open in the ground circuit of the heated seat switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
21 | Replace the HTDSTLF Fuse (LF) or HTDSTRF Fuse (RF) in the rear fuse block. Refer to Circuit Testing in Wiring Systems. Did you complete the replacement. | -- | -- | |
22 | Replace the heated seat switch. Refer to Front Seat Heater Switch Replacement . Did you complete the replacement? | -- | -- | |
23 | Replace the heated seat back heating element. Refer to Driver Seat and Passenger Seat Back Cushion Heater Replacement . Did you complete the replacement? | -- | -- | |
24 | Replace the heated seat cushion heating element. Refer to Driver Seat and Passenger Seat Cushion Heater Replacement . Did you complete the replacement? | -- | -- | |
25 | Replace the heated seat module. Refer to Front Seat Heater Control Module Replacement . Did you complete the replacement? | -- | -- | |
26 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | |
