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Signal Circuit Inspection

IG "OFF" and disconnect Cruise switch connector.
IG "ON".
Measure voltage between signal terminal of Cruise switch harness connector and chassis ground.
Specification: Approx. 4.5V
Is the measured voltage within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Go to " 1 Check short in harness" as follows.

Check short in harness
1. IG "OFF" and disconnect Cruise switch connector and ECM connector.
2. Measure resistance between signal and power terminals of Cruise switch harness connector.
3. Measure resistance between signal and ground terminals of Cruise switch harness connector.
  Specification: Infinite
4. Is the measured resistance within specification?
  YES
  - Go to " 2 Check open in harness" as follows.
  NO
  - Repair short in control harness and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check open in harness
1. IG "OFF" and disconnect Cruise switch connector and ECM connector.
2. Measure resistance between signal terminal of Cruise switch harness connector and cruise signal terminal of ECM harness connector.
  Specification: Approx. below 1Ω
3. Is the measured resistance within specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Repair open in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.