Symptom Chart
Diagnostics in this service information 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.
SYMPTOM CHART
| 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
|
|
- Selector lever linkage is out of correct gear relationship
|
- Selector lever linkage out of adjustment
|
|
| |
- Manual control lever not aligned correctly on the TR sensor (flat surfaces do not line up)
- Loose selector lever cable bracket
|
- REMOVE the manual control lever nut and CHECK the alignment of the manual control lever.
- 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
|
|