Fog Light Checking
Use tester VAG 1466 when troubleshooting!
Test conditions:
- Fuse No. 10 OK !
- Fog lights L 22 and L 23 OK !
Troubleshooting preparations:
- Remove push-in jumper from relay position 10. Fog light relay (J 5 ), stamped with the production control number 53, may be installed in relay position 10 instead of the jumper. During repairs relay can be replaced with jumper.
- Insert test adaptor VAG 1466/3 into relay position 10.
- Connect VAG 1466 to test adaptor.
Test procedure information:
- Perform test steps according to table.
- If specified value/test result is obtained, continue troubleshooting with next test step (test result OK ).
- If specified value/test result is not obtained, locate and eliminate malfunction using table.
- Use valid Wiring Diagram for checking wiring.
- Remove all test wires from sockets of VAG 1466 after each test step.
After repairing malfunction, check fog lights for proper operation.
Fog Lights Troubleshooting
| Test step: | 1 | 2 | 3 | 4 |
| To be checked: | Voltage supply (Terminal X ) | Light switch (E 1 ) | Fog light switch (E 7 ) | Fog light switch (E 7 ) |
| Socket assignment VAG 1466: Red wire |
from 2 to S+ | from 4 to S+ | from 4 to 8 | from 4 to 8 |
| Black wire | from S- to L+ | from S- to L+ | - | - |
| Blue wire | from L- to 6 | from L- to 6 | - | - |
| Additional work; | Switch ignition ON | Switch ignition OFF , switch light switch (E 1 ) ON | Switch parking lights ON Switch fog light switch (E 7 ) ON (pull out) |
Switch headlights ON Switch fog light switch (E 7 ) ON (pull out) |
| Specified value/ Test result: |
Indicator lamp L (green lights) up | Indicator lamp L (green lights) up | Fog lights L 22 and L 23 light up and fog light indicator lamp (K 17 ) lights up | Fog lights L 22 and L 23 light up and fog light indicator lamp (K 17 ) lights up |
Possible Causes If Specified Value/Test Result Is Not Obtained
| Wiring from fuse/relay panel to component: | - | R/5
to E 1 or R/7 to E 1 |
P/1
to E 7 or P/4 to E 7 or A2/8 to L 22 and L 23 or L 22 and L 23 to ground |
- |
| Light switch (E 1 ) or: | - | X | - | - |
| Fog light indicator lamp (K 17
) or: |
- | - | X | - |
| Fog light switch (E 7
) or: |
- | - | X | X |
| Fuse/relay panel | X | X | X | - |