CAN Communication Line Check

WARNING: This page is about a different car, the 2013 Kia Sportage and 2012 Kia Sportage. However, it is still accessible from the selected car via links, so may be relevant.

■ Check short to ground in CAN communication line

Ignition "OFF"
Measure resistance between CAN high terminal (# 3) of diagnostic connector and chassis ground.
Measure resistance between CAN low terminal (# 11) of diagnostic connector and chassis ground.
Specification: ∞ Ω

Fig 1: Measuring Resistance Between CAN Low/High Terminals (# 11)/(# 3) Of Diagnostic Connector & Chassis Ground
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: TPMS, Data Link Connector, ABS & PCM Connector End Views
Courtesy of KIA MOTORS AMERICA, INC.
Is the measured value within specification?
YES
- Check ABS, 4WD ECU and PCM 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 short to battery in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Check short to ground in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.