Circuit Inspection

G15725887

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	Brake booster vacuum pressure sensor connector	3 (power)	Chassis ground	-	Approx. 5V
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	Brake booster vacuum pressure sensor connector	1 (signal)	ECM connector	80 (signal)	Approx. below 1Ω
	Brake booster vacuum pressure sensor connector	1 (signal)	Chassis ground	-	∞ (infinity)Ω
	Brake booster vacuum pressure sensor connector	2 (ground)	Chassis ground	-	Approx. below 1Ω

Good

Carefully re-do this troubleshooting guide steps.
If no problems were found with the circuits or connectors, replace the A/C pressure transducer and Go to "VERIFICATION OF REPAIR " procedure.

No Good

Repair or replace as necessary and then, Go to "VERIFICATION OF REPAIR " procedure.