APS1 Circuit Inspection

Power Circuit Inspection 

1. Ignition "OFF"
2. Refer to "ACCELERATOR POSITION SENSOR (APS) " and disconnect Accel Pedal Position Sensor connector.
3. Ignition "ON"
4. Measure voltage between Pin No. 4 (Power) terminal of Accel Pedal Position Sensor harness connector and chassis ground.

   Specification:  Approx. 5V

5. Is measured value within specification?

   YES 

   • Go to "next" procedure.

   NO 

   • Repair open or short in power circuit, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Ground Circuit Inspection 

1. Ignition "OFF"
2. Disconnect Battery (-) terminal.
3. Refer to "ACCELERATOR POSITION SENSOR (APS) " and "ENGINE CONTROL MODULE (ECM) " and disconnect Accel Pedal Position Sensor and PCM connector.
4. Measure resistance between Pin No. 2 (Ground) terminal of Accel Pedal Position Sensor harness connector and Pin No. 47 (Ground) terminal of ECM/PCM harness connector.

   Specification:  Approx. below 1Ω

5. Connect PCM connector.
6. Measure resistance between Pin No. 2 (Ground) terminal of Accel Pedal Position Sensor harness connector and chassis ground.

   Specification:  Approx. below 1Ω

7. Is measured value within specification?

   YES 

   • Go to "next" procedure.

   NO 

   • Repair open or short in ground circuit, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Signal Circuit Inspection 

1. Ignition "OFF"
2. Disconnect Battery (-) terminal.
3. Refer to "ACCELERATOR POSITION SENSOR (APS) " and "ENGINE CONTROL MODULE (ECM) " and disconnect Accel Pedal Position Sensor and PCM connector.
4. Measure resistance between Pin No. 3 (Signal) terminal of Accel Pedal Position Sensor harness connector and Pin No. 65 (Signal) terminal of ECM/PCM harness connector.

   Specification:  Approx. below 1Ω

5. Is measured value within specification?

   YES 

   • Go to "APS2 CIRCUIT INSPECTION " procedure.

   NO 

   • Repair open or short in ground circuit, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.