STEP 1. ETACS-ECU coding data check
STEP 2. Using scan tool (M.U.T.-III), diagnose the CAN bus line
(1) caution | To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III). |
Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III)
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(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the CAN bus line found to be normal?
Go to Step 3. Repair the CAN bus line.
STEP 3. Using scan tool (M.U.T.-III), read the ETACS diagnostic trouble code.
STEP 4. Using scan tool (M.U.T.-III), check data list.
STEP 5. Check of short to power supply, short to ground, and open circuit in ACC line between radio and CD player connector and ETACS-ECU connector
STEP 6. Voltage measurement at radio and CD player connector (+B2 terminal).
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Check the voltage between the radio and CD player connector (+B2 terminal) and ground.OK: The voltage should measure approximately 12 volts (battery positive voltage).
Is the check result normal?
Go to Step 8. : Go to Step 7.
STEP 7. Check of short to power supply, short to ground, and open circuit in +B2 line between fusible link and radio and CD player connector
STEP 8. Check of open circuit in GND2 line between radio and CD player connector and ground
STEP 9. Check that the radio and CD player is correctly ground
STEP 10. Retest the system