Inspection Procedure 3: The key reminder switch signal is not received. < Vehicles without KOS >: Diagnosis
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
Required Special Tools:
- MB991223: Harness Set
- MB992006: Extra Fine Probe
- STEP 1. Check the key reminder switch.
Refer to IGNITION SWITCH CHECK .
Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Replace the key reminder switch.
- STEP 2. Resistance measurement at key reminder switch connector (ground terminal)
- Disconnect the connector, and measure at the wiring harness side.
- Measure the resistance between the key reminder switch connector (ground terminal) and ground.
OK: The resistance should be 2 ohms or less
Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Go to Step 3.
- STEP 3. Check of open circuit in ground line between key reminder switch connector and the ground
Q: Is the check result normal?
- YES: Intermittent malfunction is suspected (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
- NO: Repair the connector(s) or wiring harness.
- STEP 4. Check of short to power supply, short to ground, and open circuit in HL1+ line between ETACS-ECU connector and key reminder switch connector
Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Repair the connector(s) or wiring harness.
- STEP 5. Using scan tool (M.U.T.-III), check data list. 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) ."
- Check the input signals from the key reminder switch.
- Ignition switch: "LOCK" (OFF) (key inserted)
Item No. Item name Normal condition 264 Handle lock switch Key in OK: Normal condition is displayed.
Q: Is the check result normal?
- YES: The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
- NO: Replace the ETACS-ECU.