LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Audi >> 1986 >> 5000 CS, Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System - Hall Effect >> Testing >> Ignition System Test - 5000CS Turbo
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Ignition System Test - 5000CS Turbo

  1. Crank engine. If engine does not start, crank engine for at least 5 seconds, then leave ignition on. This will store information on components which might have caused a no-start condition. Go to step 3).
  2. If engine starts, road test vehicle. Ensure engine reaches normal operating temperature, 3000 RPM and a boost pressure of 17 psi (1.2 kg/cm2 ). DO NOT turn ignition off after road test. Allow engine to idle. Go to step 3).
    NOTE: If ignition is turned off, fault memory will be erased. To reproduce fault and store in memory, vehicle must be restarted and test driven.
  3. Ensure idle switch is closed. Close full throttle switch, by hand, for about 3 seconds. Tachometer should indicate 7000 RPM and fault indicator light should come on, indicating system is ready for fault diagnosis.
  4. Depress brake pedal to actuate fault memory. If no faults are stored in memory, tachometer reading will be 7000 RPM and fault indicator light will not come on. Turn ignition off to end test.
  5. If faults are stored in memory, tachometer reading will be 1000-6000 RPM. Fault indicator light comes on and/or off. See IGNITION SYSTEM TROUBLE SHOOTING - 5000CS TURBO . Depress brake pedal again to display additional faults.
    NOTE: If tachometer displays 7000 RPM after depressing brake pedal and fault indicator light comes on, check voltage supply and brake light switch.
  6. On Bosch ignition controlled systems, if no additional faults are stored in memory, and if initial fault is displayed again, fault diagnosis sequence is completed. Turn ignition off. See IGNITION SYSTEM TROUBLE SHOOTING - 5000CS TURBO  and correct fault(s).
  7. On Hitachi ignition controlled systems, if no additional faults are stored in memory, and tachometer indicates 7000 RPM with fault light off, fault diagnosis sequence is completed. Turn ignition off. See IGNITION SYSTEM TROUBLE SHOOTING - 5000CS TURBO  and correct fault(s).
  8. On either system, if more than one fault is indicated by displays, trace and correct faults in the same order in which they were displayed. Test drive vehicle and perform IGNITION SYSTEM TEST - 5000CS TURBO  once more to verify repairs.
scientia non olet · About LEMON Manuals