STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics
(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)
."
(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 check result normal?
Go to Step 3. Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ). On completion, go to Step 2.
STEP 2. DTC recheck after resetting CAN bus lines
STEP 4. Charging system check
STEP 5. Voltage measurement at the ASC-ECU connector
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the voltage between the +BV terminal and the body ground.OK: The voltage should measure approximately 12 volts (battery positive voltage).
Is the check result normal?
Go to Step 7. Go to Step 6.
STEP 6. Check of short to power supply, short to ground, and open circuit in +BV line between fusible link and ASC-ECU connector
Is the check result normal?
Go to Step 7. : Repair the fusible link, connector(s) or wiring harness.
STEP 7. Resistance measurement at ASC-ECU connector
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Resistance between the GND1 terminal and the body ground, and between the GND2 terminal and the body ground.OK: The resistance should be 2 ohms or less
Is the check result normal?
Go to Step 9. Go to Step 8.
STEP 8. Check of open circuit in GND1, GND2 line between ASC-ECU connector and body ground
Is the check result normal?
Go to Step 9. : Repair the connector(s) or wiring harness.
STEP 9. Check whether the DTC is set again.
STEP 10. Check whether the DTC is set again.
(1) Erase the DTC.
(2) Drive the vehicle at 12 mph (20 km/h) or higher.note | The ABS warning light does not turn OFF in some cases unless the vehicle runs at 12 mph (20 km/h) or higher. |
Is DTC No. C1608 set?
Return to Step 1. : Go to Step 11.
STEP 11. Check the other DTC.
(1) Erase the DTC.
(2) Drive the vehicle at 12 mph (20 km/h) or higher.note | The ABS warning light does not turn OFF in some cases unless the vehicle runs at 12 mph (20 km/h) or higher. |
Is any DTC set?
Carry out the applicable troubleshooting for the DTC (Refer to ). : The procedure is complete.