Dodge 2004 Neon SX2 Diagnostic Manual page 469

P0325-KNOCK SENSOR #1 CIRCUIT —
TEST
3 Turn the ignition off.
Disconnect the Knock Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K42) and (K45) circuits at the
Knock Sensor harness connector.
Is the resistance to ground below 100 ohms on either circuit?
Yes → Repair the short to ground in the Knock Sensor circuit.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the Knock Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K42) KS Signal circuit from the Knock Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the (K42) KS Signal circuit.
No
5 Turn the ignition off.
Disconnect the Knock Sensor harness connector.
Measure the resistance between the (K42) KS Signal circuit and the (K45) KS Return
circuit in the Knock Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the (K42) KS Signal circuit for a short to (K45) KS Return
→ Go To 6
No
6 Turn the ignition off.
Disconnect the Knock Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K45) KS Return circuit from the Knock Sensor
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 7
→ Repair the open in the (K45) KS Return circuit.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
Continued
133
APPLICABILITY
All
All
All
All