P0907 — Gate Select Position Circuit High #

Note: The wording of this code may change depending on the vehicle manufacturer.

• Gate Select Position Circuit High (General/SAE)
• Gate Select Switch Circuit High (Volkswagen/Audi)
• Shift Gate Selector Position High Input (Ford)
• Transmission Range Sensor Circuit High (GM, Chrysler)

Summary for DTC P0907 #

When your vehicle registers the P0907 code, it means the Engine Control Module (ECM) or Transmission Control Module (TCM) has detected an abnormally high voltage signal in the Gate Select Position Circuit. This circuit is responsible for relaying the current position of the gear selector—essentially telling the computer which gear you’re trying to select. If this signal is outside the expected range, the system can’t reliably determine your gear selection. This can lead to shifting issues, warning lights, and, in some cases, drivability problems. While this code is more common on vehicles with electronically controlled manual or automated transmissions, it can appear in other configurations as well.

Common Symptoms for P0907 #

When P0907 sets, your car often gives you clues—some obvious, others subtler. Think of it as your transmission’s way of waving a flag that something’s amiss with gear selection. Here’s what you might notice:

• Check Engine Light or transmission warning indicator illuminates
• Difficulty shifting gears (especially into certain ranges)
• Transmission stuck in one gear or limp mode
• Delayed or harsh gear engagement
• Unusual noises during shifting

Most Likely Causes of P0907 #

Several factors can trigger this code, but some are more prevalent than others. Understanding the likely culprits can save you time and money:

1. Faulty gate select position sensor — The sensor itself may have failed or become contaminated.
2. Wiring issues — Broken, corroded, or shorted wires/contacts in the circuit.
3. Connector problems — Loose, damaged, or corroded connectors at the sensor or TCM/ECM.
4. Faulty TCM/ECM — Rare, but possible if all else checks out.
5. Aftermarket modifications — Poor-quality remote start systems or transmission swaps can interfere with signal integrity.

Step-by-Step Diagnostic Guide for P0907 #

Diagnosing P0907 requires a methodical approach. Think of it as detective work—each step eliminates suspects until you find the true culprit:

• 1. Scan for other DTCs: Address any related transmission or sensor codes first.
• 2. Visual inspection: Check for damaged wires, connectors, or obvious corrosion at the gate select sensor and its harness.
• 3. Check sensor voltage: Use a digital multimeter to measure sensor output; compare to OEM specs (typically 0.5–4.5V range).
• 4. Wiggle test: Move the harness and connectors while monitoring voltage—fluctuations often indicate intermittent wiring faults.
• 5. Test continuity and resistance: Ensure the wiring from the sensor to the ECM/TCM is intact and within factory resistance specs.
• 6. Substitute known-good sensor (if accessible): Swap in a test sensor to rule out sensor failure.
• 7. Check TCM/ECM power and grounds: Poor module grounding can cause false high circuit readings.
• 8. Consult OEM service procedures: For vehicle-specific diagnostic flowcharts and pinouts.

Possible Repairs for P0907 #

The right fix depends on your diagnostic results. Address the underlying cause, not just the symptom:

• Replace the gate select position sensor if faulty or contaminated.
• Repair or replace damaged wiring in the circuit (including soldering and heat-shrinking connections).
• Clean or replace corroded connectors at the sensor or module.
• Update or reprogram the TCM/ECM if a software issue is present (rare).
• Undo or properly integrate aftermarket modifications affecting the gear select circuit.

Can You Drive With Code P0907? #

Driving with P0907 is generally not recommended until diagnosis and repair are complete. While the vehicle may remain drivable, you risk unpredictable shifting, possible limp mode activation, and—depending on the failure—damage to the transmission over time. If you notice harsh shifting or are unable to select gears, have the vehicle inspected as soon as possible.

Vehicles Most Commonly Affected by P0907 #

This code tends to appear more often in vehicles with electronically controlled manual transmissions or dual-clutch systems, but is not exclusive to any specific make. Here are some platforms where P0907 has been reported:

• Volkswagen/Audi (DSG and Tiptronic systems)
• Ford (PowerShift or SelectShift transmissions)
• General Motors (GM) with advanced automatic or hybrid setups
• Chrysler/Dodge/Jeep (with electronic range selectors)
• Some Nissan, Renault, and Peugeot models with automated manuals

Common Mistakes & Best Practices for P0907 #

It’s easy to fall into diagnostic traps when dealing with circuit codes. Here’s how to avoid them and increase your repair success:

• Don’t replace the sensor without confirming wiring integrity—wiring faults are more common than sensor failures.
• Avoid clearing the code before capturing freeze-frame data, which can help pinpoint intermittent problems.
• Always use OEM or equivalent-quality replacement parts—aftermarket sensors may have different signal ranges.
• Inspect connectors under load (wiggle test), not just visually.
• Document all diagnostic steps; this helps if further troubleshooting is needed.

Quick FAQ for P0907 #

Still have questions? Here are answers to some of the most common ones:

• Q: Will a bad gate select sensor cause transmission failure?
  A: It rarely causes catastrophic failure by itself, but can lead to poor shifting and long-term wear if left unaddressed.
• Q: Can P0907 be caused by a dead battery or jump start?
  A: It’s uncommon, but power surges or low voltage can sometimes trigger this code, especially if connectors are already marginal.
• Q: Is P0907 the same as a “range sensor” code?
  A: Often, yes. Manufacturers may use different terms, but both refer to the circuit that tells the computer which gear you’re selecting.