What Does P2746 Mean?
The transmission control module is receiving a signal from intermediate shaft speed sensor B that is outside expected parameters compared to other transmission speed sensors. The sensor is functioning but providing implausible data relative to vehicle speed and engine RPM.
Common Causes
30%
Excessive air gap between sensor and reluctor ring due to wear or improper installation
25%
Damaged or worn reluctor ring with missing teeth or irregular spacing
20%
Weak or failing sensor providing erratic signal strength
15%
Internal transmission mechanical problem causing abnormal shaft speed relationship
10%
Contaminated transmission fluid affecting sensor operation
Diagnostic Steps
1
Step 1: Compare sensor B speed data with other transmission speed sensors and calculated values during test drive
2
Step 2: Check transmission fluid level and condition for contamination or degradation
3
Step 3: Inspect sensor mounting and verify proper air gap specifications if adjustable
4
Step 4: Remove sensor and inspect reluctor ring for damage, missing teeth, or excessive runout if accessible
5
Step 5: Monitor all transmission speed sensors simultaneously with scan tool during various gear engagements to identify correlation issues
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
The transmission control module is receiving a signal from intermediate shaft speed sensor B that is outside expected parameters compared to other transmission speed sensors. The sensor is functioning but providing implausible data relative to vehicle speed and engine RPM.
The most common cause of P2746 (Intermediate Shaft Speed Sensor B Circuit Range/Performance) is: Excessive air gap between sensor and reluctor ring due to wear or improper installation
Typical repair costs for P2746 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause unexpected shifting behavior, gear hunting, or transmission slippage. If internal mechanical failure is present, continued driving may cause severe transmission damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2746 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
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