STEP 1. Using scan tool MB991958, check data list.
STEP 2. Check selector lever assembly connector C-20, ETACS-ECU connector C-415 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 3. Check the battery power supply circuit to the selector lever assembly. Measure the voltage at selector lever assembly connector C-20.
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Turn the ignition switch from "ACC" position.
(3) Measure the voltage between the selector lever assembly connector C-20 terminal 5 and ground.- The voltage should measure approximately 12 volts (battery positive voltage).
Is the measured voltage approximately 12 volts (battery positive voltage)?
Go to Step 5. Go to Step 4.
STEP 4. Check the wiring harness between selector lever assembly connector C-20 (terminal 5) and ETACS-ECU connector C-415 (terminal 9).
STEP 5. Check the ground circuit to the selector lever assembly. Measure the resistance at selector lever assembly connectors C-20.
STEP 6. Check the wiring harness between selector lever assembly connector C-20 (terminal 6) and ground.
STEP 7. Check steering lock solenoid connector C-308 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 8. Check of steering lock solenoid.
(1) Disconnect the connector, and measure the resistance at the equipment side.
(2) Measure the resistance between the steering lock solenoid connector C-308 terminal 1 and 2.- The resistance should be 2 ohms or less.
Is the steering lock solenoid in good condition?
Go to Step 9. Replace the steering lock solenoid.
STEP 9. Check the ground circuit to the steering lock solenoid. Measure the resistance at steering lock solenoid connector C-308.
STEP 10. Check the wiring harness between steering lock solenoid connector C-308 (terminal 2) and ground.
STEP 11. Check the wiring harness between selector lever assembly connector C-20 (terminal 4) and steering lock solenoid connector C-308 (terminal 1).
STEP 12. Retest the system