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Home >> Mitsubishi >> 2008 >> Outlander 4WD V6-3.0L (6B31) >> Repair and Diagnosis >> Starting and Charging >> Power and Ground Distribution >> Auxiliary Power Outlet >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Inspection Procedure 1

Inspection Procedure 1

INSPECTION PROCEDURE 1: Even When The Equipment (power Consumption Is 100 W Or Less) Is Connected, The Equipment Cannot Be Used.

AC Power Supply Circuit (Part 1):




AC Power Supply Circuit (Part 2):






TECHNICAL DESCRIPTION (COMMENT)
The wiring harness or connector between the AC inverter and AC outlet may be failed. When the wiring harness and connector are normal, the AC inverter or AC outlet may be failed.

NOTE: When inside of the vehicle is held at high temperature (35 °C or more) for a long time (for example under the scorching sun), if the power supply is used with the vehicle parked, its operation may be automatically stopped to prevent the power supply unit from being overheated. After the AC inverter operation is stopped, when the AC inverter temperature decreases, the power automatically turns to ON. Also, if the equipment is AC 100 V but not 100 W or less, the equipment cannot be used even when it is connected.

TROUBLESHOOTING HINTS
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
- The AC inverter may be defective
- The AC outlet may be defective

DIAGNOSIS

Required Special Tools:
- MB991223: Harness set
- MB992006: Extra fine probe

STEP 1. Check AC inverter connector D-128 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Is AC inverter connector D-128 in good condition?

YES : Go to Step 2.

NO : Repair the damaged parts.

STEP 2. Measure the voltage at AC inverter connector D-128.

1. Disconnect AC inverter connector D-128, and measure the voltage wiring harness side.




2. Measure the voltage between AC inverter connector D-128 (terminal No. 1) and the body ground.
- The voltage should measure approximately 12 volts (battery positive voltage).

Q: Does the voltage measure battery voltage?

YES : Go to Step 5.

NO : Go to Step 3.

STEP 3. Check the wiring harness between AC inverter connector D-128 (terminal No. 1) and fusible link (34).

NOTE: Before the wiring harness check, check intermediate connector C-32 and C-35, ETACS-ECU connector C-308,and then repair them if necessary.

Q: Is the wiring harness between AC inverter connector D-128 (terminal No. 1) and fusible link (34) in good condition?

YES : Go to Step 4.

NO : Repair the wiring harness between AC inverter connector D-128 and fusible link (34).

STEP 4. Retest the system

Q: Is the check result normal?

YES : The trouble can be an intermittent malfunction (Refer to general (Body and Chassis), How to use Troubleshooting/inspection Service Points How to Cope with Intermittent Malfunction).

NO : Carry out the troubleshooting again.

STEP 5. Measure the voltage at AC inverter connector D-128.

1. Disconnect the connector, and measure at the wiring harness side.
2. Turn the ignition switch to the "ON" position.




3. Measure the voltage between AC inverter connector D-128 (terminal No. 3) and the body ground.
- The voltage should measure approximately 12 volts (battery positive voltage).

Q: Does the voltage measure battery voltage?

YES : Go to Step 8.

NO : Go to Step 6.

STEP 6. Check the wiring harness between AC inverter connector D-128 (terminal No. 3) and ETACS-ECU connector C-313 (terminal No. 2).

Q: Is the wiring harness between AC inverter connector D-128 (terminal No. 3) and ETACS-ECU connector C-313 (terminal No. 2) in good condition?

YES : Go to Step 7.

NO : Repair the wiring harness between AC inverter connector D-128 and ETACS-ECU C-313.

STEP 7. Retest the system

Q: Is the check result normal?

YES : The trouble can be an intermittent malfunction (Refer to general (Body and Chassis), How to use Troubleshooting/inspection Service Points How to Cope with Intermittent Malfunction).

NO : Carry out the troubleshooting again.

STEP 8. Measure the resistance at AC inverter connector D-128.

1. Disconnect the AC inverter connector D-128, and measure at the wiring harness side.




2. Measure the resistance between AC inverter connector D-128 (terminal No. 7) and the body ground.
- The measured value should be continuity exists (2 ohms or less).

Q: Does the measured resistance value correspond with this range?

YES : Go to Step 11.

NO : Go to Step 9.

STEP 9. Check the wiring harness between AC inverter connector D-128 (terminal No. 7) and the body ground.

Q: Is the wiring harness between AC inverter connector D-128 (terminal No. 7) and the body ground in good condition?

YES : Go to Step 10.

NO : Repair the wiring harness between AC inverter connector D-128 and the body ground.

STEP 10. Retest the system

Q: Is the check result normal?

YES : The trouble can be an intermittent malfunction (Refer to general (Body and Chassis), How to use Troubleshooting/inspection Service Points How to Cope with Intermittent Malfunction).

NO : Carry out the troubleshooting again.

STEP 11. Check AC outlet connector D-103 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Is AC outlet connector D-103 in good condition?

YES : Go to Step 12.

NO : Repair the damaged parts.

STEP 12. Measure the resistance at AC inverter connector D-128 and AC outlet connector D-103.

1. Disconnect the connector, and measure at the wiring harness side.




2. Measure the resistance between AC inverter connector D-128 (terminal No. 4) and AC outlet connector D-103 (terminal No. 3).
- The measured value should be 2 ohms or less.




3. Measure the resistance between AC inverter connector D-128 (terminal No. 11) and AC outlet connector D-103 (terminal No. 1).
- The measured value should be 2 ohms or less.

Q: Does the measured resistance value correspond with this range?

YES : Go to Step 14.

NO : Go to Step 13.

STEP 13. Check the wiring harness between AC inverter connector D-128 (terminal No. 4,11) and AC outlet connector D-103 (terminal No. 3,1).

Q: Is the wiring harness between AC inverter connector D-128 (terminal No. 4,11) and AC outlet connector D-103 (terminal No. 3,1) in good condition?

YES : Go to Step 14.

NO : Repair the wiring harness between AC inverter connector D-128 and AC outlet connector D-103.

STEP 14. Retest the system

Q: After the AC outlet replacement, does the AC power supply operate normally?

YES : The trouble can be an intermittent malfunction (Refer to general (Body and Chassis), How to use Troubleshooting/inspection Service Points How to Cope with Intermittent Malfunction).

NO : Replace the AC inverter.
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