P0129

Test 1 - 2:

Test 3 - 7:

Test 8 - 12:

SYMPTOM
P0129-BAROMETRIC PRESSURE OUT-OF-RANGE LOW

WHEN MONITORED
With the ignition key on. No Cam or Crank signal within 75 ms. Engine speed at less than 250 RPM.

SET CONDITION
The PCM senses the voltage from the MAP sensor to be less than 2.196 volts but above 0.0392 of a volt for 300 milliseconds.One Trip Fault.

POSSIBLE CAUSES
- IAC signal circuit low
- IAC signal circuit high
- Intermittent condition
- (K6) 5 volt supply circuit shorted to voltage
- (K6) 5 volt supply circuit shorted to ground
- (K6) 5 volt supply circuit open
- MAP sensor internal failure
- (K1) MAP signal circuit open
- (K1) MAP signal circuit shorted to ground
- PCM (K6) 5 volt supply circuit
- PCM (K1) MAP SIG circuit