What Does P0914 Mean?
The TCM has detected a general circuit malfunction in the gear shift position sensor, which monitors the forward/rearward position of the shift mechanism (odd/even gear engagement) in an automated manual transmission. This sensor provides critical feedback about which gear within a gate is selected. A circuit fault means the TCM cannot verify the current gear engagement position.
Safety Warning
Without gear position feedback, the TCM cannot verify gear engagement, which may cause incorrect gear selection or prevent shifting. Do not drive until repaired.
Common Causes
35%
Failed gear shift position sensor (internal open or short)
30%
Damaged or corroded wiring between sensor and TCM
20%
Loose or corroded connector at the gear shift position sensor
15%
TCM input circuit fault on gear shift position input
Diagnostic Steps
1
Step 1: Inspect the gear shift position sensor connector for corrosion, bent pins, moisture, or physical damage — reseat the connector after inspection.
2
Step 2: Measure 5V reference supply at the sensor connector with key on — absence of reference voltage indicates an open supply wire or TCM fault.
3
Step 3: Monitor gear shift position sensor output on a scan tool while commanding gear changes — signal should vary between defined voltage thresholds for each gear position.
4
Step 4: Check continuity of all wires (supply, signal, ground) from the sensor connector to the TCM connector — each should read less than 5 ohms.
5
Step 5: If wiring and connector are good, substitute the sensor and verify normal operation through a complete gear selection cycle.
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The TCM has detected a general circuit malfunction in the gear shift position sensor, which monitors the forward/rearward position of the shift mechanism (odd/even gear engagement) in an automated manual transmission. This sensor provides critical feedback about which gear within a gate is selected....
The most common cause of P0914 (Gear Shift Position Circuit [senses forward / rearward position, odd / even gears]) is: Failed gear shift position sensor (internal open or short)
Typical repair costs for P0914 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Without gear position feedback, the TCM cannot verify gear engagement, which may cause incorrect gear selection or prevent shifting. Do not drive until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0914 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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