Cylinder Identification Sensor

NOTE: Enter this test only when Code 03 is displayed during QUICK TESTS procedure, or when directed here from another PINPOINT TEST.

Fig 1: Identifying CID Circuit & Connectors (CID)

CID CIRCUIT PIN IDENTIFICATION

Circuit	PCM Pin	BOB Pin	Wire Color
CID	1N	34	YEL

1) Turn ignition off. Install BOB, leaving PCM disconnected. Unplug distributor connector. Measure resistance between BOB pin No. 34 and CID terminal on distributor harness connector. Repair Yellow wire between PCM and distributor if resistance is greater than 5 ohms. If resistance is less than 5 ohms, go to next step.

2) Turn ignition on. Measure voltage between distributor VPWR and GND wires. If voltage is greater than 10 volts, replace CID sensor. If voltage is not greater than 10 volts, repair distributor GND wire.