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.