DIAGNOSTIC ITEM 22: Diagnose When The Scan Tool Cannot Receive The Data Sent By Satellite Radio Tuner: Diagnosis
WARNING: This page is about a different variant/trim than selected.
Required Special Tools:
- MB991223: Harness Set
- MB992006: Extra Fine Probe
- STEP 1. Check joint connector (CAN1) C-105 and satellite radio tuner connector C-18 for loose, corroded or damaged terminals, or terminals pushed back in the connector. CAUTION: The strand end of the twisted wire should be within 10 cm (4 inches) from the connector. For details refer to SERVICE PRECAUTIONS .
Q: Are joint connector (CAN1) C-105 and satellite radio tuner connector C-18 in good condition?
- YES: Go to Step 2.
- NO: Repair the damaged parts.
- STEP 2. Check the wiring harness between joint connector (CAN1) C-105 and satellite radio tuner connector C-18 for open circuit. CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to SERVICE PRECAUTIONS .
- Disconnect joint connector (CAN1) C-105 and satellite radio tuner connector C-18, and check the wiring harness.
- Check the wiring harness between joint connector (CAN1) C-105 (terminal 4) and satellite radio tuner connector C-18 (terminal 4)
OK: Continuity exists (2 Ω or less)
- Check the wiring harness between joint connector (CAN1) C-105 (terminal 15) and satellite radio tuner connector C-18 (terminal 11)
OK: Continuity exists (2 Ω or less)
Q: Is the wiring harness between joint connector (CAN1) C-105 and satellite radio tuner connector C-18 in good condition?
- YES: Check the power supply circuit of the satellite radio tuner. Refer to TROUBLE SYMPTOM CHART .
- NO: Repair the wiring harness between joint connector (CAN1) C-105 and satellite radio tuner connector C-18.