Component Tests and General Diagnostics

Visual Inspection
1. Remove the CMP sensor.

NOTE:
- Make sure that the CMP sensor is free of any metallic shavings or particles.
- If metallic shavings or particles are found on the sensor, clean them off.

2. Install the CMP sensor.

Frequency 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. Connect WDS or equivalent to DLC-2 connector.
5. Connect tester testleads to the following PCM connector terminals.
- (+) lead: Breakout box terminal 85
- (-) lead: Breakout box terminal 103

6. Start the engine.
7. Monitor RPM PID.




8. Inspect frequency value at following RPM PID.

NOTE:
- The selected threshold voltage should be 2 V DC. If incorrect threshold voltage is selected, calculated frequency value is incorrect.
- Threshold voltage should be DC range.

Specification
- RPM PID: 650 - 750 rpm
- Frequency: 16 - 18 Hz

9. Change the threshold voltage to 6 V DC.
10. Make sure that the frequency indicates 0 Hz.
- If frequency value or Breakout Box 85 voltage are out of specifications, 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 CMP sensor.

Open circuit
- CMP signal circuit (CMP sensor connector terminal B and PCM connector terminal 85)
- Power circuit (CMP sensor connector terminal A and main relay terminal D through common connector)
- GND circuit (CMP sensor connector terminal C and PCM connector terminal 103)

Short circuit
- CMP signal circuit (CMP sensor connector terminal B and PCM connector terminal 85 to GND)
- Power circuit (CMP sensor connector terminal A and main relay terminal D through common connector to GND)

5. Reconnect the CMP sensor connector.
6. Inspect the camshaft pulley (exhaust side) for damage and cracks.