Section 07 ENGINE MANAGEMENT (DI)
Subsection 03 (DIAGNOSTIC PROCEDURES)
FAULT
CODE
DIAGNOSED
COMPONENT/
SENSOR/CIRCUIT
ECU
INTERNAL
NAME
FAULT
DETECTED
FAULT
DETECTED
WHILE ENGINE
RUNNING
FAULT
DETECTED
WHILE ENGINE
NOT RUNNING
NORMAL
OPERATION
RESUMES IF
FAULT REMOVED
AND...
P0325 Knock sensor KNOCK_SENS
Knock sensor
failure
Yes, over 4500 No Return to idle
Possible causes:
Damaged sensor, damaged circuit wires, damaged connector, damaged ECU pins. ECU failure.
Service action:
Bring engine to 4500 RPM. If fault code appears, check for resistance approx. 4.8 ohms between system circuits 4-2 and 4-17.
P1601 Diagnostic cap COMMS_CAP
Diagnostic cap is
not installed on
wiring harness
Yes Yes
As soon as fault is
not present
Possible causes:
Cap is not installed on wiring harness.
Service action:
Reinstall cap on wiring harness.
smr2004-Complete Line Up 389
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