| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 09 | ENGINE SPEED | X 25 XE and X 30 XE only: |
Engine running at idle speed, operating temperature
| Compare displayed values with nominal value specified in Checking Procedures | ||
|---|---|---|
| 31 | 3 | |
| Notes for Trouble - shooting: | Nominal Value: | Cause of Fault: |
· Disconnect ABS - 2SH control unit U 4.8, Motronic M 2.8.1 control unit K 61 and automatic transmission control unit K 85 (if present) from wiring harness
· Using multimeter, check from ABS - 2SH control unit plug U 4.8 / X 25P / Ter. 3 to
- tachometer P 7 / Ter. 22
- Motronic M 2.8.1 control unit K 61 / Ter. 43
| - automatic transmission control unit K 85 / Ter. 11 | ||
|---|---|---|
| for passage | approx. 0 W | |
| · Plug connection X 1 / Ter. 92 defective |
· Short circuit or lead interruption from ABS - 2SH control unit U 4.8 / X 25P / Ter. 3 to
- tachometer P 7
- Motronic M 2.8.1 control unit K 61 / Ter. 43
- AT control unit K 85 / Ter. 11 (if present)
· AT control unit K 85 defective (if present)
· Motronic M 2.8.1 control unit K 61 defective
· Control unit U 4.8 defective