M/T Reverse Lockout System Symptom Troubleshooting

Troubleshooting is performed after checking DTCs of PGM-FI.

Symptom Diagnostic procedure Also check for 
It cannot shift to a reverse gear 1.
2. 
Test the reverse lockout solenoid.
Reverse lockout circuit troubleshooting. 
 
It can shift to a reverse gear at 20 km/h or more speed 1.
2. 
Test the reverse lockout solenoid.
Reverse lockout circuit troubleshooting.