Test Procedure

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

-- Disconnect the secondary air injection hose.

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

Checking voltage

NOTE:

The engine MUST be at ambient temperature and have at least 8 hours off time for the ECM to operate the Secondary Air Injection (SAI) system. The SAI system may operate for as little as 10 seconds, up to 55 seconds depending on ambient temperature.

-- Ignition switch Off.

-- Using a multimeter, check the Secondary Air Injection (SAI) Pump Motor --V101-- electrical harness connector terminal 2 to ground for voltage. When ready, start the engine while monitoring the reading.

-- Start the engine.

Specified value: Battery voltage.

-- Switch the ignition OFF.

If the specified value was Not obtained:

-- Check the wiring connection from the Secondary Air Injection (SAI) Pump Relay --J299-- socket 2 (relay terminal 87) to the Secondary Air Injection (SAI) 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 or an open fuse. Refer to the wiring diagram.

-- If necessary, repair the faulty wiring connection, replace fuse if needed.

If the wiring has no fault, the fuse is not open and voltage is Not present at the pump:

-- Perform the Secondary Air Injection (SAI) Pump Relay --J299-- test.

If the specified value was obtained: