Volvo VN 2003 - MID 140 PID 178 Air Suspension Pressure, Front

Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 178 Air Suspension Pressure, Front
W3005589
A03 Instrument cluster
B56 Sensor, front air suspension pres-
sure
Fault code
FMI 5
Abnormally low current or open-circuit.
Conditions for fault code:
•
If the instrument cluster registers a voltage value
less than 0.3 V the instrument cluster interprets this
as a fault and a fault code is stored.
Possible cause:
•
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
Reaction from the instrument cluster:
•
Fault code is stored.
•
Yellow lamp requested.
Noticeable external symptoms:
•
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
Appropriate check:
•
“MID 140 PID 178 Air Suspension Pressure, Front,
Check” page 44.
FMI 6
Abnormally high current or short-circuit to ground.
Conditions for fault code:
•
If the instrument cluster registers a voltage more
than 4.7 V the instrument cluster interprets this as a
fault and a fault code is stored.
Possible cause:
•
Signal cable short-circuited to ground.
•
Faulty sensor.
Reaction from the instrument cluster:
•
Fault code is stored.
•
Yellow lamp requested.
Noticeable external symptoms:
•
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
Appropriate check:
•
“MID 140 PID 178 Air Suspension Pressure, Front,
Check” page 44.
43