What Does P0917 Mean?
The TCM has detected that the gear shift position sensor circuit voltage exceeds the maximum acceptable threshold. This high signal condition typically points to an open ground circuit at the sensor, a short to battery voltage on the signal wire, or an internally failed sensor. The sensor monitors the forward/rearward position of the shift mechanism.
Safety Warning
A stuck-high signal means the TCM receives incorrect gear position data, risking incorrect gear engagement. Do not drive; have the vehicle towed.
Common Causes
35%
Open ground circuit at gear shift position sensor
30%
Short to battery voltage in signal wire
20%
Gear shift position sensor internal failure producing high output
15%
TCM input circuit fault pulling signal high
Diagnostic Steps
1
Step 1: Measure the sensor signal voltage at the TCM connector — if above 4.8V regardless of shift position, confirm the high circuit condition.
2
Step 2: Check the sensor ground circuit — measure resistance from the sensor ground pin to the TCM ground pin; should be less than 5 ohms; high resistance or open confirms the ground fault.
3
Step 3: Disconnect the sensor and check if the high voltage persists on the signal wire at the TCM connector — if it drops, the sensor is internally failed; if it remains, the harness has a short to power.
4
Step 4: Inspect the wiring for chafing against power wires or contact with battery voltage sources.
5
Step 5: Repair the identified fault, clear codes, and perform the TCM gear position adaptation procedure.
Estimated Repair Cost
$120 - $650
Parts + labor, varies by vehicle and location
The TCM has detected that the gear shift position sensor circuit voltage exceeds the maximum acceptable threshold. This high signal condition typically points to an open ground circuit at the sensor, a short to battery voltage on the signal wire, or an internally failed sensor. The sensor monitors t...
The most common cause of P0917 (Gear Shift Position Circuit High) is: Open ground circuit at gear shift position sensor
Typical repair costs for P0917 range from $120 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A stuck-high signal means the TCM receives incorrect gear position data, risking incorrect gear engagement. Do not drive; have the vehicle towed.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0917 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automated Manual Transmission (Shift Control)
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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