| Subject: | Engine Does Not Crank - Starter Solenoid Does Not Click - Monitor Ignition Accessory Voltage |
| Models: | 2006-2008 Chevrolet Cobalt |
| 2006-2008 Chevrolet Malibu |
| 2006 Pontiac Pursuit (Canada Only) |
| 2006-2008 Pontiac Solstice |
| Only with 2.2 Engine (VIN D or F - RPO L61) |
| or 2.4 Engine (VIN B or P - RPO LE5) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
On rare occasions, the ECM may not command the starter relay on, resulting in an engine no crank concern with no DTCs. When in the crank position during the concern, the Starter Relay Command on the Tech 2 will display "Off" even though the Crank Request
Signal displays "Yes".
Recommendation/Instructions:
If the SI diagnostics do not isolate the cause of this concern, monitor the Ignition Accessory Signal Parameter on the Tech 2 during the concern. This parameter should display "Off" when in the crank position and "On" when in the accessory and run positions.
If it reads "On" while in the crank position, monitor the accessory voltage circuit from the ignition switch to the BCM during the concern. If voltage is present on this circuit when in the crank position, inspect the circuit for a short to voltage with both
ends of the circuit disconnected. If the circuit is not shorted to voltage, replace the ignition switch for evaluation.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
