Inspection Procedure
- INSPECT RADIO RECEIVER
- Disconnect the radio receiver connector R4.
- Measure the resistance according to the value(s) in the table below.
Resistance
TERMINALS RESISTANCE SPECIFICATIONTester connection Condition Specified Condition SW2 - SWG No switch is pushed Approx. 100 kΩ SW2 - SWG VOICE switch: push Approx. 3.2 kΩ SW2 - SWG ON HOOK switch: push Approx. 0.3 kΩ SW2 - SWG OFF HOOK switch: push Approx. 1.0 kΩ NG: Go to step 2
OK: RETURN TO THE ORIGINAL INSPECTION FLOW BECAUSE THE CHECK RESULT IS NORMAL
- INSPECT STEERING PAD SWITCH ASSEMBLY
- Disconnect the steering pad switch connector A.
- Measure the resistance according to the value(s) in the table below.
Resistance
TERMINALS RESISTANCE SPECIFICATIONTester connection Condition Specified Condition AU2 - EAU No switch is pushed Approx. 100 kΩ 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. 1.0 kΩ NG: REPLACE STEERING PAD SWITCH ASSEMBLY
OK: Go to next step
- INSPECT SPIRAL CABLE
- Disconnect the steering pad switch and spiral cable connectors.
- Measure the resistance according to the value(s) in the table below.
Resistance
TERMINALS RESISTANCE SPECIFICATIONTester connection Condition Specified Condition EAU - EAU Always Below 1 Ω AU2 - AU2 Always Below 1 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE SPIRAL CABLE
OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE - RADIO RECEIVER)