AX4N

DTCs:
634 TR Sensor Error Detected
654 TR Sensor Not in Park (KOEO)

CAUTION: To properly diagnose an AX4N transaxle, the Transmission Tester (007-0085C) must have been updated for AX4N compatibility. This update includes internal software and related components and a new cable and overlay. Inspect your tester for the "AX4N compatible" label located near the tester's cable connector. If the label is missing, do not use the tester to diagnose the AX4N transaxle. Contact Rotunda Equipment or Hickok Electrical for information on how to have the tester updated.

This Pinpoint Test is designed to diagnose the transmission range (TR) sensor electrical system ONLY. To prevent replacement of good components, note that the following areas may be at fault:
- Engine - Starter, starter relay
- Electrical - Battery, ignition switch, wiring harnesses
- Transmission - Internal transmission components, linkages

This Pinpoint Test is designed to diagnose the following components:
- Transmission Wiring Harness, TR Sensor, Signal Return
- Powertrain Control Module (PCM)

Refer to the following schematic and charts when performing the Pinpoint Test Steps.

TR Sensor Tester Overlay: