Symptom Chart: External Controls
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS
In most circumstances the PCM
sets a DTC
to help guide with the diagnostics. Refer to the DTC CHART before using the Symptom Chart. The Symptom column lists the vehicle condition. The Possible Sources 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 cause 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 |
Possible Sources |
Action |
- Brake shift interlock system does not release/lock correctly
|
- Circuitry shorted to ground
- BCM
|
|
| |
- Brake Shift Interlock Actuator (BSIA) solenoid
|
|
- Selector lever will not shift from PARK
|
|
|
| |
- Selector lever cable retaining clip or bracket
|
|
| |
- Broken selector lever cable
|
|
- TCS
(Grade Assist) does not operate correctly
|
- Circuitry open or shorted to ground
- TCS
(Grade Assist) switch
- PCM
|
- CLEAR the DTC
and PERFORM the KOER
self-test. If the DTC
returns, GO to PINPOINT TEST C
|
| |
|
|
- Selector lever linkage is out of correct gear relationship
|
- Selector lever linkage out of adjustment
- Manual control lever not aligned correctly on the sensor (flat surfaces do not line up)
- Loose selector lever cable bracket
|
|
- Vibration - a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speed
|
- Selector lever cable grounded out or loose
|
|