Component Testing
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
IMS Direction
| IMS Circuits | Park | Reverse | Neutral | Drive 4 | Drive 3 | Drive 2 | Drive 1 |
|---|---|---|---|---|---|---|---|
| Direction Switch Operating Conditions: Ignition ON, range selector in appropriate gear | |||||||
| Transmission Direction Signal R1 | HI | LOW | LOW | HI | HI | HI | HI |
| Transmission Direction Signal R2 | LOW | HI | HI | LOW | LOW | LOW | LOW |
| Transmission Direction Signal D1 | HI | HI | LOW | LOW | LOW | LOW | LOW |
| Transmission Direction Signal D2 | LOW | LOW | HI | HI | HI | HI | HI |
| Transmission Direction Signal Start | LOW | HI | LOW | HI | HI | HI | HI |
IMS Range
| IMS Circuits | Park | Reverse | Neutral | Drive 4 | Drive 3 | Drive 2 | Drive 1 |
|---|---|---|---|---|---|---|---|
| Range Switch Operating Conditions: Ignition ON, range selector in appropriate gear | |||||||
| Transmission Range Signal A | LOW | LOW | HI | HI | HI | LOW | LOW |
| Transmission Range Signal B | HI | LOW | LOW | LOW | HI | HI | LOW |
| Transmission Range Signal C | HI | HI | HI | LOW | LOW | LOW | LOW |
| Transmission Range Signal P | LOW | HI | LOW | HI | LOW | HI | LOW |
| Always HI status: Open/short to voltage condition Always LOW status: Short to ground condition |
|||||||