No Communication with Emission Test Equipment - Reprogram ECM - keywords 240 communication controls facility failed inspection I/M IM state
| Subject: | No Communication with Emission Test Equipment - Reprogram ECM |
| Models: | 2005 Saturn Ion |
| with 2.2L Engine (VIN F - RPO L61) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some emission test equipment may not communicate with the ECM but normal communication is noted with a Tech 2.
Recommendation/Instructions:
If this is encountered, reprogram the ECM with the latest calibrations and re-evaluate the concern.
Important: With the ignition is OFF, apply the parking brake to disable the daytime running lights (DRL) prior to starting the reprogramming procedures. On models equipped with an "Auto Headlamp Feature", the headlamps must be turned off prior to reprogramming.
Important: Select "Reprogram" option on the Saturn Service Stall in order to reprogram the ECM.
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.
