LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 1988 >> 560SL >> Repair and Diagnosis >> Engine Performance >> System >> Cis-E System >> Component Testing >> EZL Ignition >> Engine Not Running
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Not Running

  1. Connect multimeter and Engine Tester (MCM-2110 ). Crank engine and check dwell angle. Measurement should be 1-50% or 1-30 degrees of dwell. If not, go to next step. If okay, check ignition timing at cranking RPM. Timing should be about one degree BTDC. If not okay, go to step 4).
  2. With ignition on, test voltage between terminal No. 5 of diagnostic socket (coil terminal No. 15) and ground. Nominal value should be 12 volts. If okay, go to next step. If not okay, test voltage supply from ignition switch. Test voltage difference between terminals No. 5 and 4 of diagnostic socket (coil terminals No. one and 15). Should read zero volts. If not, proceed to next step.
  3. Unplug ignition position indicator (Green wire) from ignition control module. Test resistance of sensor between connector terminals No. 7 and 31 with ohmmeter. Specification is 730-910 ohms). If not, replace position indicator. If okay, go to next step.
  4. Measure dwell angle. If no dwell angle is indicated, replace ignition control module.
scientia non olet · About LEMON Manuals