Diesel Data: Automotive Repair

Air Injection Pump Relay: Testing and Inspection


INSPECT AIR PUMP RELAY







Check the continuity.

Tester Connection Specified Condition
1 - 2 Continuity
3 - 4 No Continuity
3 - 4 Continuity (Apply battery voltage to terminals 1 and 2)

Using an ohmmeter, check for continuity between the terminals.

If the result is not as specified, replace the air pump relay.