C�11, Return Pump Relay Circuit
| C�11, return pump relay circuit |
|---|
| Test | Work order description | Nominal value |
| T01 | Check: Supply voltage of the pump relay | |
| Ignition OFF Disconnect wiring harness plug from: | 11.5...13.5 V |
| K50 ABS control unit | |
| Measure voltage between following terminals: | |
| K50 ABS control unit Wiring harness plug terminal 17 and 18 & Ground | |
| Yes: T02 | No: E01 |
| T02 | Check: control unit ground connection | |
| Measure voltage between following terminals: | 11.5...13.5 V |
| K50 ABS control unit Wiring harness plug terminal 17 and 18 & K50 ABS control unit Wiring harness plug terminal 19 | |
| Yes: T03 | No: E02 |
| T03 | Check: Pump motor ground connection | |
| Measure voltage between following terminals: | 11.5...13.5 V |
| K50 ABS control unit Wiring harness plug terminal 17 and 18 & K50 ABS control unit Wiring harness plug terminal 16 | |
| Yes: T04 | No: E03 |
| T04 | Check: pump motor operation | |
| Ignition OFF Wiring harness plug connect from: | OK |
| K50 ABS control unit | |
| Ignition ON Select using TECH1: | |
| F5:ACTUATOR TEST NO. T01 RET.PUMP RELAY | |
| Yes: E05 | No: E04 |
| C�11, return pump relay circuit |
|---|
| No. | Result |
| E01 | Short circuit/ circuit interruption in the wiring harness: |
| K50 ABS control unit Wiring harness plug terminal 17 and 18 & Battery G1 Terminal 30 |
| or |
| Defective components, LHD vehicles only: |
| Instrument panel X6 & front body 45P Wiring harness plug terminal 78 and 79 |
| E02 | Short circuit/ circuit interruption in the wiring harness: |
| K50 ABS control unit Wiring harness plug terminal 19 & Battery G1 Terminal 31 |
| or |
| Defective components: |
| Instrument panel X6 & front body 45P Wiring harness plug terminal 52 |
| E03 | Circuit interruption in the wiring harness: |
| K50 ABS control unit Wiring harness plug terminal 16 & Battery G1 Terminal 31 |
| E04 | Defective components: |
| K50 ABS control unit |
| E05 | If further fault codes stored, fault elimination in the corresponding diagnostic trees |
| Test drive vehicle, read fault memory |
