What Does P2835 Mean?
The TCM has detected an intermittent or erratic signal from the shift fork A position sensor circuit. The signal is unstable, cycling between normal and abnormal values, indicating a connection or sensor integrity issue.
Common Causes
40%
Loose or intermittent connection at sensor connector
30%
Damaged wiring harness with intermittent short or open
20%
Failing shift fork position sensor
8%
Corrosion in sensor connector causing intermittent contact
2%
Vibration-induced wiring or mounting issues
Diagnostic Steps
1
Step 1: Thoroughly inspect sensor connector for looseness, corrosion, or bent pins - wiggle test while monitoring live data
2
Step 2: Inspect wiring harness for chafing, damage, or routing near heat sources or moving parts
3
Step 3: Monitor sensor signal voltage with scan tool while manipulating harness to identify intermittent fault location
4
Step 4: Check sensor mounting security and inspect for physical damage or excessive play
5
Step 5: Replace sensor and/or repair wiring as needed based on test results
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
The TCM has detected an intermittent or erratic signal from the shift fork A position sensor circuit. The signal is unstable, cycling between normal and abnormal values, indicating a connection or sensor integrity issue.
The most common cause of P2835 (Shift Fork "A" Position Circuit Intermittent) is: Loose or intermittent connection at sensor connector
Typical repair costs for P2835 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Intermittent faults can cause unpredictable shifting behavior and may result in sudden transmission limp mode engagement. Should be diagnosed promptly for safe operation.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2835 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
