PACCAR MX (2004 Emissions) Fault Code: P1025 BPV Actuator Position – Malfunction on Sensor
PACCAR MX (2004 Emissions) Fault Code: P1025 BPV Actuator Position – Malfunction on Sensor
SET CONDITIONS:
The BPV valve (L096) detects a failure or deviation on the internal position sensor.
DIAGNOSTIC CONDITION:
This diagnostic runs continuously when the ignition is on.
CORRESPONDING OBD READINESS MONITOR:
None
RESET CONDITION:
This DTC changes to inactive after the ignition is keyed off for at least 15 seconds and keyed on again and the error is no longer detected.
REPAIR VERIFICATION:
1. Clear all DTCs.
2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.
3. Did the DTC come back?
– No, repair successful
– Yes, repair unsuccessful
POSSIBLE CAUSES:
1. Bent actuator lever and/or link rod
2. Incorrectly installed link rod
ADDITIONAL INFORMATION:
1. The position of the BPV valve is monitored by a shaft position sensor in the actuator.
2. The actuator motor is switched off, and the BPV valve is fully opened (100% position) with this DTC active.
3. Engine torque is reduced after 10 hours of engine operation.
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