P2128

Test 1:

Test 2 - 6:

Test 7 - 10:

Test 11 - 12:

SYMPTOM
P2128-HIGH VOLTAGE AT THE THROTTLE VALIDATION SWITCH

WHEN MONITORED
Key on.

SET CONDITION
Both Idle and Not Idle switches are in the same state simultaneously for a calibrated amount of time.

POSSIBLE CAUSES
- (K565) idle switch circuit shorted to (K922) return circuit
- (K556) not idle switch circuit shorted to (K922) return circuit
- (K565) idle switch circuit shorted to ground
- (K556) not idle switch circuit shorted to ground
- (K565) idle switch shorted to (K556) not idle switch
- (K565) idle switch shorted to (K556) not idle switch inside ECM
- ECM
- Intermittent condition
- (K29) Apps no.2 signal circuit shorted to (K854) Apps no.2 5-volt supply circuit
- (K29) Apps no.2 signal circuit shorted to other circuits in the ECM harness
- ECM
- APPS
- Intermittent condition