Component Inspection

Continuity Inspection

NOTE: Perform the following test only when directed.

1. Disconnect the negative battery cable.




2. Remove the main relay.




3. Inspect for continuity between terminals of the relay using an ohmmeter.
- If not as specified, replace the main relay.
- If the main relay is okay, but PCM terminal 71 or 97 voltage is out of specification, carry out the "Circuit Open/Short Inspection".

Circuit Open/Short Inspection
1. Remove the PCM.




2. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
3. Tighten the connector attaching screw.

Tightening torque
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}




4. Inspect for an open or short circuit in the following wiring harnesses by probing the applicable sensor and SST (104 Pin Breakout Box) terminals with ohmmeter leads.
- If there is an open or short circuit, repair or replace wiring harnesses.
- If there is no open or short circuit, replace the main relay.

Open circuit
- Main relay power supply circuit (Main relay connector terminal A and ignition switch (IG1) connector through common connector)
- PCM power supply circuit (Main relay terminal C and battery positive terminal through common connector)
- GND circuit (Main relay connector terminal B and GND through common connector)

Short circuit
- Main relay power supply circuit (Main relay connector terminal A and ignition switch (IG1) connector through common connector to GND)
- PCM power supply circuit (Main relay connector terminal C and battery positive terminal through common connector to GND)

5. Install the main relay.