STEP 1. Check harness connector B-12 at electronic-controlled throttle valve for damage.
STEP 2. Check the throttle actuator control motor.
(1) Disconnect the electronic-controlled throttle valve connector B-12.
(2) Measure the resistance between electronic-controlled throttle valve side connector terminal No. 1 and No. 2.Standard value: 0.3 - 80 Ω [at 20°C (68°F)]
Is the measured resistance between 0.3 and 80 Ω [at 20°C (68°F)]?
Go to Step 3. Replace the throttle body assembly. Then go to Step 7.
STEP 3. Check harness connector B-26 at ECM for damage.
STEP 4. Check for short circuit to ground between electronic-controlled throttle valve connector B-12 (terminal No. 1) and ECM connector B-26 (terminal No. 15).
STEP 5. Check for short circuit to ground between electronic-controlled throttle valve connector B-12 (terminal No. 2) and ECM connector B-26 (terminal No. 16).
STEP 6. Using scan tool MB991958, read the diagnostic trouble code (DTC).
caution | To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. |
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is DTC P2101 set?
Replace the ECM (Refer to, Removal and Installation ). Then go to Step 7. It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions .
STEP 7. Using scan tool MB991958, read the diagnostic trouble code (DTC).
caution | To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. |
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is DTC P2101 set?
Retry the troubleshooting. The inspection is complete.