Checking wires to Engine Control Module (ECM)
WARNING: This page is about a different variant/trim than selected.
- Connect test box to control module wiring harness. Refer to Test box, connecting for wiring test
- Check wires between test box and 2-pin connector to Engine Control Module (ECM) for open circuit according to wiring diagram.
Wire resistance: max. 1.5 Ω
| Component | Connector | Test box |
| Valve 1 for camshaft adjustment -N205- | Terminal 2 | Socket 115 |
| Camshaft Adjustment Valve 1 (exhaust) -N318- | Terminal 2 | Socket 120 |
- Also check wires for short circuit to B+ and to Ground (GND).
Specified value: ∞ Ω
- Check wire between 2-pin connector terminal 1 and Motronic Engine Control Module (ECM) Power Supply Relay -J271- for open circuit according to wiring diagram
Wire resistance: max. 1.5 Ω
- Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data
- Generate readiness code. Refer to Readiness code, generating
If resistances and wires are OK:
- Replace Motronic Engine Control Module (ECM) -J220-. Refer to Engine Control Module (ECM), replacing .