Checking activation
- Connect multimeter as follows to measure voltage.
POWER SUPPLY RELAY CIRCUIT CHECK: TERMINAL 6, ACTIVATION
| Relay carrier in electronics box, plenum chamber, position 2 terminal | Measure to |
|---|---|
| 6 | Battery positive (B+) |
- Switch ignition on.
- Specified value: approx. battery voltage (B+)
- Switch ignition off.
- Connect test box V.A.G 1598/31 to wiring harness for ECM; do not connect ECM. See ELECTRICAL TESTING USING VAG1598/31 TEST BOX .
- Check for open circuit, short to positive, or short to ground in following wiring connection(s):
If specified value is not obtained:
POWER SUPPLY RELAY CIRCUIT CHECK: TERMINAL 6 SOCKET 21
| Relay carrier in electronics box, plenum chamber, position 2 terminal | Test box V.A.G 1598/31 Socket |
|---|---|
| 6 | 21 |
- Repair any open/short circuit as necessary.
- Replace power supply relay -J271-.
If no malfunction is found: