With the Impulse Counter (California Only)
Testing^ Connect pulse counter according to connection diagram.
^ Switch on ignition.
Note: LED U Batt in display panel must light up; if not:
Multimeter set to Volts:
a) Test contact 1 on test connector X92 to battery positive (11 - 14 V).
b) Test contact 3 on test connector X92 to contact 1 (0.7 - 2.5 V).
001 CIS-E control unit connector
002 Test cable
003 Multimeter
004 Contact box
N3 CIS-E control unit
Model 107:
013 Pulse counter
T1 Ignition coil
X92 Diagnostic test connector, 8-pin (flashing code)
Model 126:
013 Pulse counter
G1 Battery
X92 Diagnostic test connector B-pin (flashing code)
Pulse readout
^ Press start button for between 2 and 4 seconds.
^ Take readout of number of pulses and note.
^ Press start button once again for between 2 and 4 seconds, note any further faults. If no further fault is stored in the system, no display appears after this.
^ Rectify noted faults (pulse readout) according to troubleshooting table by connecting contact box according to connection diagram.
After completion of flashing pulse readout, the LED shows a steady light. If the push-button switch is again pressed for between 2 and 4 seconds, any further fault path stored can be indicated. If no further fault is detected, the CIS-E control unit switches over to on/off ratio output.