Special Tool(s)
WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOL REFERENCE
| Fluke 77-IV Digital Multimeter FLU77-4 or equivalent |
|
| Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool |
Anytime an electrical connector or solenoid body is disconnected, inspect the connector for terminal condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install new components as required.
TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS CHART
| Selector Position | PID: TR | PID: TR_D | |||
|---|---|---|---|---|---|
| TR1 | TR2 | TR3 | TR4 | ||
| PARK | P/N | 0 | 1 | 1 | 0 |
| In Between | REV | 0 | 0 | 1 | 0 |
| REVERSE | REV | 0 | 0 | 1 | 1 |
| In Between | REV | 1 | 0 | 1 | 1 |
| NEUTRAL | NTRL | 1 | 0 | 1 | 0 |
| In Between | NTRL | 1 | 0 | 0 | 0 |
| Drive | Drive | 1 | 0 | 0 | 1 |
| In Between | Drive | 0 | 0 | 0 | 1 |
| Low | Low | 0 | 0 | 0 | 0 |
- "In Between" reading could be caused by a selector lever cable or Transmission Range (TR) sensor misaligned or a TR sensor circuit failure of TR 1, TR 2, TR 3 or TR 4.
- TR PIDs: 1= Open TR switch, 0 = Closed TR switch.
- Vehicle Communication Module (VCM) Readings: Taken from PCM signal pins for TR 1, TR 2, TR 3 and TR 4 to signal return.
Wiggle Test Information for Open/Shorts
- Check TR 1, TR 2, TR 3 and TR 4 circuits for an intermittent open with the TR sensor positioned so that suspect circuit is in the closed position and monitor the TR PIDs with the scan tool.
- Check TR 1, TR 2, TR 3 and TR 4 circuits for an intermittent short with the TR sensor positioned so that suspect circuit is in the open position and monitor the TR PIDs with the scan tool. To determine the shorted components while observing TR PIDs, unplug the TR and see if the short goes away. If the short is still present, unplug the transaxle harness and see if the short goes away. If the short is still present, then the short is in the PCM or vehicle harness. Remove the suspect circuit(s) wire terminal from the PCM connector. If the short is still present, then the PCM has an internal failure. Otherwise, the failure is in the vehicle harness.