Isuzu 4HK1 (Tier 3) Fault Code P0108

Isuzu 4HK1 (Tier 3) Fault Code P0108 PID 71 Barometric pressure sensor fault (high voltage fault)

Item To Be Detected:
Short circuit in sensor or harness.

Preconditons When DTC is Set:Isuzu 4HK1 (Tier 3) Fault Code P0108
1) Key switch input voltage is 18V or more.
2) DTC P1630 or P1632 is not detected.

DTC Set Condition:
Barometric pressure sensor voltage is more than 3.8 V.

Fault Judgement Period:
Approx. 5 sec.

Behavior When Trouble Occurs:
Due to back-up equivalent to 2500 m (8200 ft):
1) Black smoke emitted at high altitude
2) Output shortage at low altitude
3) Back-up: Barometric pressure default setting (80 kPa {11.6 psi}) EGR stopped

Diagnosis Lamp: ON

Recovery From Failure: *2

Possible Causes:
1) Looseness or play in the barometric pressure sensor connection.
2) Bad barometric pressure sensor.
3) Bad signal between barometric pressure sensor and ECM.
4) Short to the power supply circuit in the barometric pressure sensor.
5) Broken or damanged barometric pressure sensor.
6) Bad ECM.
7) Barometric pressure sensor showing more or less than specified value.

Isuzu 4HK1 (Tier 3) Fault Code P0107

Isuzu 4HK1 (Tier 3) Fault Code P0112

If you want to know other articles similar to Isuzu 4HK1 (Tier 3) Fault Code P0108 you can visit the category TRUCK MANUALS.