Circuit Inspection

G15731618

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component. Ignition "ON"	HUD connector	7 (C-CAN high)	Chassis ground	-	Fig. 1
	HUD connector	8 (C-CAN low)	Chassis ground	-	Fig. 1
Ignition "OFF". Disconnect the battery (-) cable. Disconnect the electrical connector(s) from the concerned component.	HUD connector	7 (C-CAN high)	HUD connector	8 (C-CAN low)	Approx. 60Ω
Ignition "OFF". Disconnect the battery (-) cable. Disconnect the electrical connector(s) from the concerned component.	CLU (component side)	32 (C-CAN high)	CLU (component side)	33 (C-CAN low)	Approx. 120Ω
	ICU (component side)	9 (C-CAN high)	ICU Component	10 (C-CAN low)	Approx. 120Ω

G15731619

Courtesy of KIA MOTORS AMERICA, INC.

Good

Disconnect C-CAN communication units one by one and monitor DTC to find the cause.
If the DTC erase, substitute with a known-good unit and check for proper operation. If the problem is corrected, replace the unit and go to "Verification Of Repair " procedure.

No Good

Check for open, short to battery and short to ground in C-CAN line.
Repair as necessary and go to "Verification Of Repair " procedure.