Schematic of Components and Numerical Listing

1 Terminal 15 2 Air conditioner 3 Not used 4 Auto. trans. (drive range switch) 5 Anti-theft signal 6 Not used 7 Full load switch 8 Idle speed switch 9 Automatic transmission tap 10 Converter lockup clutch 11 Temperature - intake air 12 Temperature - engine 13 Oxygen sensor (ground) 14 Hot wire air flow meter 15 Reference/RPM signal 16 Cylinder identifier 17 Speedometer signal 18 Diagnosis 19 Call lead (for diagnosis) 20 Control unit programming
21 Ignition coil 22 Main relay control 23 Check Engine light 24 Heated 0, sensor relay control 25 Fuel injectors 1 - 6 26 Fuel injectors 7 -12 27 Not used 28 Evaporative purge valve 29 Fuel pump relay control 30 Auto. trans. speed signal 31 Ti signal 32 TD signal 33 Hot wire self-cleaning control 34 Ground conn. - electronics 35 Ground conn. - ignition 36 Ground conn. - fuel injectors 37 Ground conn. - remaining final stages
Note: Input/output utilization will vary, depending on specific market requirements.

All the advantages of the M1.1 Motronic system are retained. They include semi-sequential injection, cold start enrichment, adaptive lambda control and timed evaporative system operation. However, as previously mentioned, idle speed regulation has been further refined and is now controlled by EML.

Self-diagnostics and fault memory remain unchanged except for the elimination of air flow meter replacement values. Limited (single) cylinder bank operation is possible in the event of certain component malfunctions.

As with other M1.1 equipped models, efficient diagnosis and fault memory access is accomplished with the diagnostic module.