Ignition System, Servicing
Note. For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary. The batteries must only be disconnected and connected with the ignition switched off, since the Engine Control Modules (ECM) can otherwise be damaged. Engine Control Modules (ECM) are equipped with On-Board Diagnostics (OBD). Components marked with * are tested via On Board Diagnostic (OBD), Diagnostic mode 3: Check DTC memory. During some checks it is possible that the control module will detect and store a malfunction. Therefore the following work steps must be performed in the mentioned sequence after ending all tests and repairs. Check DTC memory Erase DTC memory --> Diagnostic Mode 04 - Erase DTC Memory , Diagnostic mode 4: Reset/erase diagnostic data, For completion, generate readiness code --> Readiness Code, Generating .
| CAUTION | When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues: Route all the various lines (e.g. for fuel, hydraulics, EVAP system, coolant, refrigerant, brake fluid and vacuum lines and hoses) and electrical wiring so that the original positions are restored. Ensure sufficient clearance to all moving or hot components. Shift selector lever into position "P" and engage parking brake before working with the engine running. |
| CAUTION | To reduce the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following: Only disconnect and reconnect wires for injection and ignition system, including test leads, when ignition is switched off. If the engine is to be turned at starter speed, without starting: Pull fuses 29 and 30 - picture - for fuel injectors 1 to 12 out of the fuser holder in the right side of the instrument panel |
Right instrument panel fuse holder
Note. If test and measuring equipment is required during road test, note the following: Test and measuring instruments must be secured to rear seat and operated by a 2nd person from this location. If test and measuring instruments are operated from the front passengers seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.