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Old 11-15-2018, 03:20 AM   #1
Heidi
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Question Ion ignition and passlock problems

My 2006 Ion quad coupe is having problems starting. We replaced ignition switch and relearned the pass lock to it. It worked for about a month and now we are having roblems again. Anyone have any thoughts.

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Old 11-15-2018, 10:38 AM   #2
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2003 L-Series 3.0L Sedan
Default Re: Ion ignition and passlock problems

A no start/no starter sounds may be ignition switch related or a worn out starter. If original starter, how many miles on it? One way to test whether its a starter or another ignition switch failure is measuring for a12v START signal on the small gauge wire (purple?) on the starter when the ignition switch is turned to the START position.

Check for blown fuses in the engine fuse box before attempting advanced troubleshooting.

Ions use electronic starting unlike older conventional electric starting without electronics. The ignition switch uses 5v logic (electronic) signals whereas older ign switches use 12v electrical power and sends 12v directly from ign switch to starter solenoid. Electronic starting sends 5v to the ecm, the ecm checks for Passlock security then commands a small start relay to send 12v to the starter solenoid. Once the starter solenoid powers up, it switches battery power to power the starter motor. Testing for the 12v START signal on the starter solenoid (small) terminal can determine if its a faulty ignition switch or worn out starter. This START signal only appears when the ign switch is held in the START position. If you understand this procedure, you should disconnect this small gauge wire from the starter to prevent the starter from suddenly turning on (intermittent/worn out). For safety, battery negative should be disconnected first then disconnecting this wire from starter then reconnecting battery negative. The adjacent (outer) battery terminal on the starter is live with 12v from the battery without fuse protection. The hanging wire is safe for testing without being connected to the starter.

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