F7 Checking Ignition Supply (X) to Receiver Module

- Switch off ignition.
- Connect a voltmeter between pos. 1 and pos. 4 in the cable harness 5-pin connector.
The voltmeter should indicate approx. 0 V.




- Ignition in position I.
- Connect a voltmeter between pos. 1 and pos. 4 in the cable harness 5-pin connector.
The voltmeter should indicate battery voltage.

If both values OK:
- Continue to F8. F8 Checking Signal Cable

If reading is incorrect:
Open circuit or short circuit in ignition supply cable between fusebox pos. 11C/9:2 for fuse 9 and cable harness 5-pin connector pos. 4.
- Correct fault or replace ignition supply cable to receiver module.