Volvo TSI, Manual

Page: 134 / 250

Group 28 Troubleshooting
MID 128 PID 172 Air Inlet Temperature
An ambient air temperature sensor is mounted in the piping between the air filter and
the turbo inlet. In addition to ambient air temperature, the sensor also measures air fil-
ter restriction. The air filter restriction function is currently not used.
Fault Codes
FMI 3
Short circuit to voltage or open circuit.
Conditions for fault code:
•
The voltage on EB3 exceeds 4.95 V.
Possible cause:
•
Short circuit to voltage, signal wire.
•
Short circuit to voltage, ground wire.
•
Break, signal wire.
•
Break, ground wire.
•
Fault in sensor.
Reaction from the EECU:
•
Fault code is set.
•
Yellow lamp is requested.
Noticeable external symptom:
•
Yellow lamp lights up.
•
Blue smoke in cold weather conditions.
FMI 4
Short circuit to ground.
Conditions for fault code:
•
The voltage on EB3 is under 0.08 V.
Possible cause:
•
Short circuit to ground, signal wire.
•
Fault in sensor.
Reaction from the EECU:
•
Fault code is set.
•
Yellow lamp is requested.
Noticeable external symptom:
•
Yellow lamp lights up.
•
Blue smoke in cold weather conditions.
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