Diagnosis And Testing - Passenger Heated Seat Switch
For circuit description and diagrams, refer to appropriate Wiring Diagrams.
Inspect the Heated Seat Switches for apparent damage or sticking/binding and replace as required. Refer to REMOVAL and INSTALLATION .
Using an ohmmeter, check the continuity between pin 4 and pin 6 of the switch. Measure the resistance between the two pins, while depressing the appropriate buttons. Refer to (Fig 1 ) and the Heated Seat Switch Pin Call-Out table. If the readings do not correspond to those in the Heated Seat Switch Continuity table, replace the heated seat switch.
Heated Seat Switch Pin Call-Out Function Reference
| PIN | FUNCTION |
|---|---|
| 1 | LOLED |
| 2 | OPEN |
| 3 | GROUND |
| 4 | IGNITION FEED |
| 5 | HI LED |
| 6 | REQUEST LINE |
Heated Seat Switch Continuity Reference
| CONTINUITY BETWEEN | SWITCH POSITION | READING |
|---|---|---|
| PIN 4 AND 6 | OFF | 2.2 Kilohms (2200 Ohms) |
| PIN 4 AND 6 | LO | .415 Kilohms 415 Ohms |
| PIN 4 AND 6 | HI | 33 Ohms |