## PGM-FI System

#### DTC Troubleshooting (cont'd)

11-87

DTC P1324: Knock Sensor Power Source Circuit Low Voltage

1. Reset the ECM/PCM (see page 11-4).
2. Turn the ignition switch ON (II).

Is DTC P1324 indicated?

YES | - Go to step 3.
NO | - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the knock sensor and at the ECM/PCM.

3. Turn the ignition switch OFF.
4. Disconnect ECM/PCM connector A (31P).
5. Check for continuity between ECM/PCM connector terminals A8 and A20.

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

Is there continuity?

YES | - Substitute a known-good ECM/PCM and recheck (see page 11-6). If symptom/indication goes away, replace the original ECM/PCM.
NO | - Go to step 6.

6. Disconnect the knock sensor 3P connector.

7. Connect the knock sensor 3P connector terminals No. 2 and No. 3 with a jumper wire.

KNOCK SENSOR 3P CONNECTOR

JUMPER WIRE

Wire side of female terminals

8. Check for continuity between ECM/PCM connector terminals A8 and A20.

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

Is there continuity?

YES | - Replace the knock sensor.
NO | - Repair open in the wire between the ECM/PCM (A8, A20) and the knock sensor.