Acura
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    AT - lock-up clutch not engaging/ disengaging
Cause:
    Wiring, lock-up control solenoid A, ECM

Honda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    AT - lock-up clutch not engaging
Cause:
    Wiring, lock-up control solenoid, TCM

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    AT - lock-up clutch not engaging/ disengaging
Cause:
    Wiring, lock-up control solenoid A, ECM