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1, 2 and 3 Digit Codes: 56

Name
Code No. 56 Speeds error - Input Speed Sensor

Description
A hard fault is considered to exist when the fault counter has matured to a value of 255.

An intermittent fault is considered present when the fault counter is greater than or equal to 6 and less than 255.

No fault is considered to exist when the fault counter is less than 6.

Probable cause
- Malfunction of input speed sensor
- Harness or connector between input speed sensor and TCM open or short-circuited
- Malfunction of TCM





Diagnosis