Secondary Air Pump (SLP)

Secondary Air Pump (SLP): The electrically-operated secondary air pump is mounted to the vehicle body. The pump draws out filtered fresh air from the air cleaner housing during the warm-up phase and supplies it to the two secondary air injection valves.




Once the engine has been started, the secondary air pump is supplied with voltage by the Secondary Air Pump Relay (located in front of the glovebox) which is activated by the ECM.

It remains switched on until the engine has taken in a certain amount of air. The ON period may be a maximum of 90 seconds and it depends on the following engine operating conditions:

- Coolant temperature (from -10 °C to approximately 60 °C )
- Ambient air temperature (from the HFM)
- Engine speed

The power is supplied from the fuse junction (#102 - 50 Amp) located on the right inner fender of the engine compartment (under the remote charging post) for the relay to energize the SLP.