#
AUXILIARY PORT VALVE (APV) MOTOR INSPECTION (13B-MSP (HIGH POWER))

BHE011301005W16

## Resistance Inspection

1. Remove the APV motor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)

2. Measure the resistance between the APV motor terminals using an ohmmeter.

  • If not as specified, replace the APV motor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
  • If as specified, carry out the "Circuit Open/Short Inspection".

  APV motor resistance
  8-50 ohms

## Operation Inspection

  Caution

  • Applying voltage to the APV motor terminals for more than 3 s may damage the APV motor.

1. Disconnect the negative battery cable.

2. Remove the APV motor.

3. Apply 12 V with a current of 0.9-1.9 A to terminal B or D and verify that the gear moves.

  • If there is no malfunction, carry out the "Circuit Open/Short Inspection".
  • If there is any malfunction, replace the APV motor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)

Terminal | Gear rotation direction
--- | ---
B | D
B+ | GND | Clockwise
GND | B+ | Counterclockwise

## Circuit Open/Short Inspection

1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

### Open circuit

  • If there is no continuity, the circuit is open. Repair or replace the wiring harness.
  – APV motor terminal B and PCM terminal 3J
  – APV motor terminal D and PCM terminal 3G

### Short circuit

  • If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
  – APV motor terminal B and power supply
  – APV motor terminal B and body GND
  – APV motor terminal D and power supply
  – APV motor terminal D and body GND