Component checks
Power supply relay
1. 1. Check the normally open contact in the unswitched state:
Measure the resistance at the power supply relay, between pin 3 and pin 5,
component side.
Is a resistance of more than 10,000 Ohm measured? If yes, go to 2. If no, RENEW
the power supply relay.
2. 2. Check the normally open contact in the switched state:
Using a fused test cable (1 A), connect pin 1 of the power supply relay, component
side, with the battery positive terminal.
Using a test cable, connect pin 2 of the power supply relay, component side, to the
battery negative terminal.
Measure the resistance at the power supply relay, between pin 3 and pin 5,
component side.
Is a resistance of less than 2 Ohms registered? If yes, the power supply relay is
OK. If no, RENEW the power supply relay.
with the aid of the Wiring Diagrams. CHECK the
operation of the system.