1, 2 and 3 Digit Codes: 57

CODE NUMBER
Scan tool: 57
General scan tool: PO72O

CODE NAME
Speeds error: Output Speed Sensor

CODE DESCRIPTION
There is an excessive change in output shaft speed in any gear.

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 output speed sensor
- Harness or connector between output speed sensor and TCM open or short-circuited
- Malfunction of TCM


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