Knock Sensor Module: Service and Repair

CAUTION: To prevent internal Powertrain Control Module (PCM) damage, the ignition must be "OFF" when disconnecting or reconnecting power to the PCM (for example, battery cable, PCM pigtail, PCM fuse, jumper cables, etc.). The ignition should be "OFF' for at least 10 seconds before disconnecting power to the PCM.

PCM Replacement:

Image Legend:
1. PCM.
2. PCM Retaining Bolt.
3. PCM Retaining Bracket.

REMOVE OR DISCONNECT
1. The negative battery cable from the battery.
2. PCM retainer attaching bolts (2).
3. PCM electrical connectors.
4. Slide PCM and retainer from PCM bracket.
5. Retainer from PCM.

CAUTION: Before removing Knock Sensor (KS) module cover, carefully clean PCM housing of any debris that may cause damage to PCM circuitry.

Knock Sensor (KS) Module Cover:

6. KS module cover.

CAUTION: To prevent possible Electrostatic Discharge damage to the PCM or KS module, DO NOT touch the connector pins or soldered components on the circuit board and DO NOT remove the integrated circuit boards from the carrier.

Knock Sensor (KS) Module:

7. KS module

INSTALL OR CONNECT
1. KS module in KS module socket.
2. KS module cover.

Tighten The KS module cover screws to 2.8-3.2 Nm (25-28 in. lbs.).
3. Slide PCM into PCM retainer.
4. PCM electrical connectors.
5. Slide PCM retainer into PCM bracket slots.
6. PCM retainer attaching bolts (2).

Tighten The (2) PCM retainer attaching bolts to 8-12 Nm (6-9 ft. lbs.).