Transmission Range Indicator Test
TRANSMISSION RANGE INDICATOR TEST
| CONDITION | POSSIBLE CAUSE |
|---|---|
| ALL PRND3L (PRND1234 if Autostick equipped) DISPLAY LIGHTS "ON" IN P&N GEAR POSITIONS | Check wiring and connectors |
| Faulty TRS | |
| Faulty manual lever | |
| ALL DISPLAY LIGHTS "ON" IN ALL GEAR POSITIONS | Check wiring & connectors |
| Faulty trans. range sensor | |
| Faulty manual lever | |
| Communication bus malfunction | |
| ALL DISPLAY LIGHTS "OFF" | Normal transient condition between P&R and R&N gear positions |
| Check shift lever linkage | |
| BCM malfunction | |
| Check wiring and connectors | |
| Faulty instrument cluster | |
| ALL DISPLAY LIGHTS "OFF" ACCOMPANIED BY A "NO BUS" MESSAGE | Communication bus malfunction |
| DISPLAY LIGHTS OUT OF SEQUENCE WITH SHIFT LEVER | Check wiring and connectors |
| Faulty TRS | |
| Faulty manual lever | |
| Communication bus malfunction |