Diagnostic Item 22: Diagnose when the scan tool cannot receive the data sent by KOS-ECU. < Vehicles with 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.
- STEP 1. Connector check: joint connector (CAN5) and KOS-ECU connector CAUTION: The strand end of the twist wire should be within 10 cm from the connector. For details refer to SERVICE PRECAUTIONS .
When checking the joint connector, ensure that its wiring harness side and its short pins are not damaged.
Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Repair the defective connector. Replace the joint connector as necessary.
- STEP 2. Resistance measurement at joint connector (CAN5) and KOS-ECU connector. CAUTION: A digital multimeter should be used. For details refer to SERVICE PRECAUTIONS .CAUTION: The test wiring harness should be used. For details refer to SERVICE PRECAUTIONS .
- Disconnect joint connector (CAN5) and the KOS-ECU connector, and measure at the wiring harness side.
- Turn the ignition switch to the LOCK (OFF) position.CAUTION: When measuring the resistance, disconnect the negative battery terminal. For details refer to SERVICE PRECAUTIONS .
- Ensure that the negative battery terminal is disconnected.
- Continuity between joint connector (CAN5) terminal No.5 and KOS-ECU connector terminal No.3
OK: Continuity (2 ohms or less)
- Continuity between joint connector (CAN5) terminal No.16 and KOS-ECU connector terminal No.2
OK: Continuity (2 ohms or less)
CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to SERVICE PRECAUTIONS .
Q: Is the check result normal?
- YES: < All the resistances measure 2 ohms or less > Power supply to the KOS-ECU may be suspected. Diagnose the KOS. Refer to DIAGNOSTIC TROUBLE CODE CHART .
- NO: < Either or all of the resistances measure more than 2 ohms > Repair the wiring harness between joint connector (CAN5) and the KOS-ECU connector.