Ignition Diagnostic Monitor: 1.3L

1)  Connect spark tester between coil secondary wire and ground. Crank engine several times, leaving ignition on between cranking periods. If continuous sparks jump tester gap, go to next step. If continuous sparks do not jump tester gap, go to step 3).

2)  With ignition off, connect BOB, leaving PCM disconnected. Connect test light between test pins IDM and VPWR. Crank engine several times. If test light flashes each time engine cranks, IDM circuit is okay. Return to QUICK TESTS if directed here from there. If test light does not flash, repair IDM wire between PCM and coil.

3)  Unplug connector from ignition coil. Connect test light between coil IDM wire and PWR wire. Crank engine several times, leaving ignition on between cranking periods. If test light flashes continuously, go to next step. If test light does not flash continuously, go to step 5).

4)  Turn ignition on. Measure voltage between coil harness PWR wire and ground. If voltage is greater than 10 volts, replace coil. If voltage is less than 10 volts, repair wire between ignition switch and coil.

5)  Unplug connector from ignition module. Connect jumper wire between SPOUT wire on ignition module harness connector and mating terminal on ignition module. Connect another jumper wire between ignition module GND wire and mating connector. Leave IDM wire disconnected. Connect test light between IDM terminal on ignition module and PWR from coil wire. Crank engine several times, leaving ignition on between cranking periods. If test light flashes each time engine cranks, repair wire between ignition module IDM wire and coil. If test light does not flash, go to next step.

6)  Turn ignition off. Unplug ignition module connector. Turn ignition on. Measure voltage between ignition module PWR wire and ground. Turn ignition on. If voltage is not more than 10 volts, repair PWR wire from ignition switch. If voltage is more than 10 volts, go to next step.

7)  Turn ignition off. Unplug ignition module connector. Turn ignition on. Connect test light between ignition coil PWR wire and ignition module GND wire. Turn ignition on. If test light glows, go to next step. If test light does not glow, repair ignition module ground wire.

8)  Turn ignition off. Unplug ignition module connector. Connect test light between ignition coil PWR wire and ignition module SPOUT wire. Crank engine. If test light flashes, check ignition module SPOUT wire for short to ground. If no short exists, replace ignition module. If test light does not flash, go to next step.

9)  Turn ignition off. Unplug ignition module connector. Install BOB, leaving PCM disconnected. Check SPOUT wire for continuity between BOB test pin and ignition module. If continuity exists, check SPOUT wire for shorts to any other wire. If no short exists, replace PCM. If continuity does not exist, repair SPOUT wire to PCM.