STEP 2. Resistance measurement at the headlight assembly (TURN: LH) connector, door mirror assembly (LH) connector and rear combination light (TURN: LH) connector.
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the connector terminal of light which does not illuminate and ground.- Measure the resistance between the headlight assembly (TURN: LH) connector (ground terminal) and ground.
- Measure the resistance between the door mirror assembly (LH) connector (ground terminal) and ground.
- Measure the resistance between the rear combination light (TURN: LH) connector (ground terminal) and ground.
OK: The resistance should be 2 ohms or less
Is the check result normal?
Go to Step 4. Go to Step 3.
STEP 3. Check of open circuit in ground line between headlight assembly (TURN: LH) connector, door mirror assembly (LH) connector or rear combination light (TURN: LH) connector and ground.
STEP 4. Check of open circuit in TL1 line between ETACS-ECU connector and headlight assembly (TURN: LH) connector.
STEP 5. Check of open circuit in TL3 line between ETACS-ECU connector and rear combination light (TURN: LH) connector
STEP 6. Check of open circuit in TL2 line between ETACS-ECU connector and door mirror assembly (LH) connector
STEP 7. Using scan tool (M.U.T.-III), Check whether the diagnostic trouble code is set again.
(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 Scan Tool (M.U.T.-III)
."
(2) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(4) Check if DTC is set.
Is the DTC set?
Replace the ETACS-ECU. The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).