Secondary Air Injection Pump Motor, Checking

Secondary Air Injection Pump Motor, Checking

• Vehicle must be raised to gain access to the Secondary Air Injection (AIR) Pump Motor (-V101-).

Special tools, testers and auxiliary items required

• Multimeter.

• Jumper wire.

• Wiring diagram.

Test requirements

• Fuse (SB10) OK.

• Fuse (SB51) OK.

• The Secondary Air Injection (AIR) Pump Relay (J299) OK.

• The Ground (GND) connections at the engine and transmission OK.

• The battery voltage at least 12.5 V.

• The generator OK.

Procedure

- Remove the center noise insulation fasteners - 1, 2, 3 - and the center noise insulation panel.





- Disconnect the Secondary Air Injection (AIR) Pump Motor (-V101-) electrical harness connector - 1 -.





Checking Pump operation

- Connect a Jumper wire from the Secondary Air Injection (AIR) Pump Motor (-V101-) terminal 2 to Battery (A) (+).





- Connect a second Jumper wire from the Secondary Air Injection (AIR) Pump Motor (-V101-) terminal 1 to Ground (GND).

- Switch the ignition on.

- Using a Multimeter, check the Secondary Air Injection (AIR) Pump Motor (-V101-) electrical harness connector terminals 1 to 2 for voltage.





- The Secondary Air Injection (AIR) Pump Motor (-V101-) should run.

If the Secondary Air Injection (AIR) Pump Motor (-V101-) does not run:

- Replace the Secondary Air Injection (AIR) Pump Motor (-V101-).

If the Secondary Air Injection (AIR) Pump Motor (-V101-) runs:

Checking wiring

- Using a Multimeter, check the Secondary Air Injection (AIR) Pump Motor (-V101-) electrical harness connector terminal 2 to the Secondary Air Injection (AIR) Pump Relay (J299) socket T31/26 for resistance.





Specified value: 1.5 ohms Max.

If the specification was not obtained:

- Check the wiring connection from the Secondary Air Injection (AIR) Pump Relay (-J299-) socket T31/26 to the Secondary Air Injection (AIR) Pump Motor (-V101-) electrical harness connector terminal 2 for an open circuit or a short circuit.

- Check the wiring connections for damage, corrosion, loose or broken terminals.

- If necessary, repair the faulty wiring connection.

If the specified value was obtained:

Checking Ground (GND)

- Using a Multimeter, check the Secondary Air Injection (AIR) Pump Motor (-V101-) electrical harness connector terminal 1 to Ground (GND) connection on left headlamp for resistance.





Specified value: 1.5 ohms Max.

If the specification was not obtained:

- Check the Secondary Air Injection (AIR) Pump Motor (-V101-) electrical harness connector terminal 1 to Ground (GND) connection on left headlamp for an open circuit, short circuit to each other, Battery (+), or Ground (GND).

- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK:

- Replace Secondary Air Injection (AIR) Pump Motor (-V101-).

- Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] Diagnostic Mode 03 - Read DTC Memory.

2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Mode 04 - Erase DTC Memory.

3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] Readiness Code.