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4 CHECK KNOCK SENSOR
Use an ohmmeter which can measure more than 10 MΩ.
1. Disconnect knock sensor harness connector.
2. Check resistance between terminal 1 and ground.
SEF174V
Resistance: 500 - 620 kΩ [at 25°C (77°F)]
CAUTION:
Discard any knock sensors that have been dropped or physically damaged. Use only new ones.
OK or NG
OK 䊳 GO TO 5.
NG 䊳 Replace knock sensor.
5 CHECK SHIELD CIRCUIT
1. Turn ignition switch OFF.
2. Remove joint connector-1.
3. Check the following. Refer to the wiring diagram.
쐌 Continuity between joint connector-1 terminal 2 and ground
쐌 Joint connector-1 (Refer to “HARNESS LAYOUT”, EL-254.)
Continuity should exist.
4. Also check harness for short to power.
5. Then reconnect harness connectors.
OK or NG
OK 䊳 GO TO 7.
NG 䊳 GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the joint connector-2. (Refer to “HARNESS LAYOUT”, EL-254.)
䊳 Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-142.
䊳 INSPECTION END
DTC P0325 KNOCK SENSOR (KS)
KA24DE
Diagnostic Procedure (Cont’d)
EC-312
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