Clutch Position Switch Circuit Malfunction (Ford)
What does P1708 mean?
The P1708 code means the vehicle's onboard diagnostic system has detected: Clutch Position Switch Circuit Malfunction (Ford). This is a low severity code.
Common Symptoms
- Check Engine Light on
- Cruise control inoperative
- Vehicle starts without pressing clutch
- Engine does not crank (intermittent)
- No clutch position input on scan tool
Probable Causes (Ranked by Likelihood)
- Faulty clutch pedal position switch Very High
- Misadjusted clutch switch High
- Broken wiring at clutch pedal area Moderate
- PCM clutch switch input circuit failure Low
Step-by-Step Diagnostic Procedure
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Use a scan tool to monitor the clutch position switch status while pressing and releasing the clutch pedal.
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Locate the clutch switch at the top of the clutch pedal and inspect for damage or misalignment.
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Check the switch connector for corrosion or loose pins.
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Measure continuity through the switch with the pedal pressed and released.
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If the switch is adjustable, set the gap per Ford specifications.
Frequently Asked Questions
Why does the clutch switch affect cruise control?
The PCM requires a clutch position input to disengage cruise control when you press the clutch. Without this signal, cruise is disabled as a safety measure.
Can the vehicle start without pressing the clutch?
If the clutch switch fails in the closed position, the PCM may allow starting without the clutch pressed. This is unsafe and should be repaired immediately.
Is the clutch switch the same as the neutral safety switch?
They serve a similar purpose. The clutch switch on manual transmissions prevents starting unless the clutch is pressed, just as the neutral safety switch prevents starting in gear on automatics.