DCM Data Signal Circuit between Navigation ECU and DCM [09/2013 - ]: Procedure
- CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - DCM)
- Disconnect the L157 DCM (telematics transceiver) connector.
- Disconnect the L156 multi-media module receiver assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition L157-1-1 (USB-) - L156-1-1 (USB-) Always Below 1 Ω L157-1-2 (USB+) - L156-1-2 (USB+) Always Below 1 Ω L157-1-3 (USBS) - L156-1-3 (USBS) Always Below 1 Ω L157-2 (USBG) - L156-2 (USBG) Always Below 1 Ω L157-3 (VOT+) - L156-7 (VOR+) Always Below 1 Ω L157-4 (USBV) - L156-4 (USBV) Always Below 1 Ω L157-5 (VOT-) - L156-6 (VOR-) Always Below 1 Ω L157-6 (VOR-) - L156-5 (VOT-) Always Below 1 Ω L157-7 (VOR+) - L156-3 (VOT+) Always Below 1 Ω L157-1-1 (USB-) - Body ground Always 10 kΩ or higher L157-1-2 (USB+) - Body ground Always 10 kΩ or higher L157-1-3 (USBS) - Body ground Always 10 kΩ or higher L157-2 (USBG) - Body ground Always 10 kΩ or higher L157-3 (VOT+) - Body ground Always 10 kΩ or higher L157-4 (USBV) - Body ground Always 10 kΩ or higher L157-5 (VOT-) - Body ground Always 10 kΩ or higher L157-6 (VOR-) - Body ground Always 10 kΩ or higher L157-7 (VOR+) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 2
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2013 - ]