Checking the Rear Fog Lamp

Checking the rear fog lamp

Checking the relay
Check relay 2/49 operation by activating and deactivating the relay several times. The relay is working if a clicking noise is heard when activating and deactivating.
If the relay is not working, replace it with a new relay.

Additional information:
- To access relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.









Is there a fault?

Yes - FAULT FOUND

No - Checking the wires and components

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Checking the wires and components
Check that the fuse 11D/2 is intact.
Check that shunt 20/29 is undamaged. The resistance between the shunt pin is 0 ohm to 5 ohm depending on between which pin the measurement is taken.

Check the wires between:
fuse 11D/2 2 and Rear electronic module (REM) connector 4E
shunt 20/29 2 and relay 2/49 5
relay 2/49 3 and left or right lower lamp body 3
for an open circuit as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault or for a short circuit to ground as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the wire between left or right lower lamp body 4 and ground point for an open circuit as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check that the lamps are intact.
Do the necessary corrective action.

Additional information:
- For information about signals and other values, see Signal specification Signal Specification
- To connect the test box, see Connecting the breakout box Connecting Breakout Box, Rear Electronic Module (REM)
- To access relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing
- Shunt 20/29 is marked with SH2 on relay/fuse box in boot and shunt 2 can be identified on the rear of the relay/fuse box.













Is there a fault?

Yes - FAULT FOUND

No - No Fault Found

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