ZH
(P0325) KNOCK SENSOR 1 CIRCUIT LOW (CONTINUED)
9.
SENSOR GROUND CIRCUIT OPEN
With the ignition off.
Measure the resistance of the Sensor Ground circuit from the Knock
Sensor harness connector to the PCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 10
No
>> Repair the Sensor Ground circuit for an open.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
10.
KNOCK SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
With the ignition off.
Measure the resistance between the Knock Sensor Signal circuit and
the Sensor Ground circuit at the Knock Sensor harness connector.
Is resistance above 100 kohms?
Yes
>> Replace the Knock Sensor. (Refer to 8 - ELECTRICAL/IG-
NITION CONTROL/KNOCK SENSOR - REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No
>> Repair the Knock Sensor Signal circuit for a short to the
Sensor Ground circuit.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
ENGINE - ELECTRICAL DIAGNOSTICS 9 - 389