Symptom Chart
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
In most circumstances, the PCM sets DTCs to help guide with diagnostics. Refer to the DTC Chart before using the symptom chart. The Condition column lists the vehicle condition. The Source column lists a detailed vehicle condition. The Action column lists the action to be performed to determine the cause of the condition. Each action lists the components that can caused the system and the individual components in that system. The components are listed in order of disassembly. Use the list of components and the required action to focus on disassembly inspections for the root cause of the concern.
| Condition | Possible Sources | Action |
|---|---|---|
| Brake shift interlock system does not release/lock correctly | Circuitry open or shorted to ground BCM fuse 18 (10A) BSIA damaged BPP switch TR sensor Selector lever cable |
REFER to pinpoint tests. INSTALL a new selector lever assembly. For floor shift, REFER to Selector Lever -- Floor Shift or for column shift, REFER to Selector Lever -- Column Shift . DIAGNOSE and REPAIR all TR sensor DTCs. REFER to Automatic Transmission - 6F50/6F55 or Automatic Transaxle Transmission - 6F35 . VERIFY selector lever cable adjustment. REFER to Selector Lever Cable Adjustment -- 6F35 or Selector Lever Cable Adjustment -- 6F50/6F55 . |
| Selector lever linkage is out of correct gear relationship | Selector lever linkage out of adjustment | REFER to Selector Lever Cable Adjustment -- 6F35 or Selector Lever Cable Adjustment -- 6F50/6F55 . |
| Manual control lever not aligned correctly on the TR sensor (flat surfaces do not line up) | REMOVE the manual control lever nut and CHECK the alignment of the manual control lever. | |
| Loose selector lever cable bracket | CHECK the selector lever cable bracket. TIGHTEN as necessary. | |
| Low gear can not be selected | BCM fuse 35 (5A) Low gear select switch Circuitry open or shorted to ground PCM |
CLEAR the DTC. Run the KOER self-test. If the DTC returns, GO to Pinpoint Test G . |
| Vibration -- a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speed | Selector lever cable incorrectly routed, grounded out or loose | REFER to External Controls , system diagram. |
| The ignition key cannot be returned to the OFF position or the ignition key can be turned to the OFF position when the selector lever is not in P | Wiring, terminals or connectors Ignition lock cylinder Key removal inhibit solenoid (part of the ignition switch) Park detect switch (part of the selector lever) Selector lever cable Mechanical damage to the selector lever, selector lever cable or selector lever knob |
REFER to: Steering Column Switches . |
| The PRNDL indicator does not illuminate P | Wiring, terminals or connectors PCM IPC Park detect switch (part of the selector lever assembly) |
REFER to: Information Center - Instrumentation, Message Center, And Warning Chimes |