STEP 2. Using scan tool (M.U.T.-IIISE), communicates with this system.
Check that the communication with scan tool (M.U.T.-IIISE) is possible.note | If ETACS-ECU is not active, OSS-ECU cannot communicate with the scan tool (M.U.T.-IIISE). |
(1) caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn the power supply mode of the electric motor switch to the OFF before connecting or disconnecting scan tool (M.U.T.-IIISE). |
Connect scan tool (M.U.T.-IIISE). Refer to "How to connect scan tool (M.U.T.-IIISE)
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(2) Disconnect the negative battery terminal, and connect it again.
(3) After the negative terminal is connected, the OSS-ECU should communicate with the scan tool (M.U.T.-IIISE) within approximately 30 seconds.
(4) Turn the power supply mode of the electric motor switch to OFF.
Is the check result normal?
Go to Step 3
.
Carry out the troubleshooting of "OSS-ECU power supply or ground circuit malfunction" (Refer to
).