Check Short To Battery In CAN Communication Line

1. Ignition OFF
2. Connect all related module connectors.
3. Ignition ON
4. Measure voltage between C-CAN high terminal of BCM (TPMS Module Integrated) harness connector and chassis ground.
5. Measure voltage between C-CAN low terminal of BCM (TPMS Module Integrated) harness connector and chassis ground.

   Specification:  below 5V

Check Open in CAN Communication Line

1. IG KEY OFF.
2. Disconnect BCM (TPMS ECU Integrated) connector and ESC (ESP) connector.
3. Measure the resistance between C-CAN-HIGH terminal of BCM (TPMS ECU Integrated) harness connector and C-CAN-HIGH terminal of ESC (ESP) harness connector.
4. Measure the resistance between C-CAN-LOW terminal of BCM (TPMS ECU Integrated) harness connector and C-CAN-LOW terminal of ESC (ESP) harness connector.

   Specification:  below 1Ω

   Item	Normal value	Prerequisite condition	(+) Probe	(-) Probe
   Check short to ground in CAN communication line (Ω)	infinity Ω	Ignition switch: OFF Connect all related module connectors.	BCM's (TPMS Module integrated) CAN "HIGH" terminal	chassis ground.
   			BCM's (TPMS Module integrated) CAN "LOW" terminal
   Check Open in CAN communication line. (Ω)	below 1 Ω	Ignition switch: OFF BCM (TPMS Module integrated) connector: Disconnected ABS/ESC (ESP) connector: Disconnected	BCM's (TPMS Module integrated) CAN "HIGH" terminal	ABS/ESC (ESP)'s CAN-"HIGH" terminal
   			BCM's (TPMS Module integrated) CAN "LOW" terminal	ABS/ESC (ESP)'s CAN-"LOW" terminal

5. Is the measured value within specification?

   YES 

   • Check ECM, BCM (TPMS Module Integrated) connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Check for open/short in harness.
   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.