Transmission Indeterminate Failure (Ford)
What does P1700 mean?
The P1700 code means the vehicle's onboard diagnostic system has detected: Transmission Indeterminate Failure (Ford). This is a moderate severity code.
Common Symptoms
- Check Engine Light on
- Harsh or erratic shifting
- Transmission slipping
- Delayed engagement when shifting to Drive or Reverse
- Transmission warning light on
Probable Causes (Ranked by Likelihood)
- Internal transmission solenoid failure Very High
- Low or contaminated transmission fluid High
- Faulty transmission range sensor Moderate
- PCM transmission control circuit failure Low
Step-by-Step Diagnostic Procedure
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Check transmission fluid level and condition. Dark or burnt-smelling fluid indicates internal damage.
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Scan for additional transmission codes that may pinpoint the specific failure.
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Test the transmission range sensor (TRS) for proper signal at each gear position.
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Monitor transmission solenoid operation with a scan tool while shifting through gears.
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If no specific cause is found, a transmission pan inspection for debris can reveal internal wear.
Frequently Asked Questions
What does indeterminate failure mean?
It means the PCM detected a transmission malfunction but could not identify the specific cause. Additional codes usually accompany P1700 and provide more detail.
Should I check for other codes?
Yes. P1700 is a general code that is almost always accompanied by more specific transmission fault codes. Those codes will guide the diagnosis.
Is this a death sentence for my transmission?
Not necessarily. Many P1700 causes are repairable without a full rebuild. Start with fluid condition, solenoid tests, and sensor checks before assuming the worst.