P1496

Tests 583 - 587:

Tests 588 - 590:

SYMPTOM
P-1496 5-VOLT SUPPLY OUTPUT TOO LOW

WHEN MONITORED
With the ignition on.

SET CONDITION
The 5-volt supply to the sensors is below 3.5 volts for 4 seconds.

POSSIBLE CAUSES
- Harness or connector intermittent defect
- MAP sensor defective
- Throttle position sensor defective
- 5-volt supply circuit short to ground
- 5-volt supply output too low reoccur
- PCM defective (5V supply ckt)