What Does P0916 Mean?
The TCM has detected that the gear shift position sensor circuit voltage is below the minimum acceptable threshold. This low signal condition typically indicates a short to ground in the signal wire, a failed sensor output stage, or a loss of the 5V reference supply. The sensor monitors forward/rearward shift position to verify gear engagement.
Safety Warning
A stuck-low position signal prevents the TCM from verifying gear engagement, likely placing the transmission in limp mode. Do not drive at highway speeds; seek immediate repair.
Common Causes
35%
Gear shift position sensor internal failure with low output
30%
Signal wire shorted to ground in harness
20%
Open or high-resistance 5V reference supply to sensor
15%
Corrosion at sensor connector creating a low-resistance path to ground
Diagnostic Steps
1
Step 1: Measure the sensor output voltage at the sensor connector — if below 0.3V regardless of shift position, confirm the low signal condition.
2
Step 2: Check for 5V reference at the sensor connector — disconnect sensor and measure; absence of 5V points to an open reference wire or TCM fault.
3
Step 3: With the sensor disconnected, measure resistance from the signal wire to chassis ground at the TCM connector — should read OL; low resistance indicates a short to ground.
4
Step 4: Inspect the sensor connector for corrosion, moisture, or conductive contamination that could short the signal to ground.
5
Step 5: If all wiring checks pass, replace the gear shift position sensor and perform the TCM gear position learning 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 is below the minimum acceptable threshold. This low signal condition typically indicates a short to ground in the signal wire, a failed sensor output stage, or a loss of the 5V reference supply. The sensor monitors forward/rear...
The most common cause of P0916 (Gear Shift Position Circuit Low) is: Gear shift position sensor internal failure with low output
Typical repair costs for P0916 range from $120 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A stuck-low position signal prevents the TCM from verifying gear engagement, likely placing the transmission in limp mode. Do not drive at highway speeds; seek immediate repair.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0916 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
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