Steering Pad Switch: Inspection
WARNING: This page is about a different car, the 2006 Lexus IS 350 and 2006 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT STEERING PAD SWITCH (w/ Navigation System)
- Disconnect the steering pad switch assembly connector.
- Measure the resistance according to the values in the table below.
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITION CHARTTester connection Condition Specified condition AU1 - EAU No switch is pushed Approx. 100 kΩ AU1 - EAU SEEK+ switch: push Approx. 0 Ω AU1 - EAU SEEK- switch: push Approx. 0.3 kΩ AU1 - EAU VOL+ switch: push Approx. 1 kΩ AU1 - EAU VOL- switch: push Approx. 3.2 kΩ AU2 - EAU No switch is pushed Approx. 100 kΩ AU2 - EAU MODE switch: push Approx. 0 Ω AU2 - EAU VOICE switch: push Approx. 3.2 kΩ AU2 - EAU ON HOOK switch: push Approx. 0.3 kΩ AU2 - EAU OFF HOOK switch: push Approx. 1 kΩ If the result is not as specified, replace the steering pad switch.
- INSPECT STEERING PAD SWITCH (w/o Navigation System)
- Disconnect the steering pad switch assembly connector.
- Measure the resistance according to the values in the table below.
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITION CHART
| Tester connection | Condition | Specified condition |
|---|---|---|
| AU1 - EAU | No switch is pushed | Approx. 100 kΩ |
| AU1 - EAU | SEEK+ switch: push | Approx. 0 Ω |
| AU1 - EAU | SEEK- switch: push | Approx. 0.3 kΩ |
| AU1 - EAU | VOL+ switch: push | Approx. 1 kΩ |
| AU1 - EAU | VOL- switch: push | Approx. 3.2 kΩ |
| AU2 - EAU | No switch is pushed | Approx. 100 kΩ |
| AU2 - EAU | MODE switch: push | Approx. 0 Ω |
If the result is not as specified, replace the steering pad switch.