DTC Troubleshooting: U1261 (107-21)
  1. Check for continuity between clutch actuator subharness 10P connector terminal No. 7 (No. 6) * and body ground.
    *: CANL
Is there continuity?
YES -
Remove the clutch actuator assembly, and check for change actuator subharness. If the wire harness is OK, substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM. ■
NO -
Repair an open in the wire between the clutch actuator subharness 10P connector and the ABS (or VSA) modulator-control unit.■
  1. Turn the ignition switch OFF.
  1. Wait for 30 seconds.
  1. Disconnect the ABS modulator-control unit 26P connector (or the VSA modulator-control unit 46P connector).
  1. Disconnect the clutch actuator subharness 10P connector from the engine compartment wire harness.