P0731

Symptom:
P0731-GEAR RATIO ERROR IN 1ST

When Monitored:
The Transmission gear ratio is monitored continuously while the transmission is in gear.

Set Condition:
If the ratio of the Input RPM to the Output RPM does not match the current gear ratio.

Test 1:

Test 2-5:

POSSIBLE CAUSES
- RELATED DTC'S PRESENT
- INTERNAL TRANSMISSION
- INTERMITTENT GEAR RATIO ERRORS