Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch Is Turned On
NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.
DIAGNOSTIC PROCEDURE
1.SELF-DIAGNOSTIC RESULT CHECK
Using CONSULT, check display contents of BCM in SELF-DIAGNOSIS.
2.CHECK COMBINATION METER
Check combination meter operation
3.CHECK LOW TIRE PRESSURE WARNING LAMP
Disconnect BCM harness connector.
TPMS
Low tire pressure warning lamp stays onP0420, P0430 three way catalyst function
DTC Logic
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen sto ...
Power supply and ground circuit
Diagnosis Procedure
1.CHECK GROUND CONNECTION-I
Turn ignition switch OFF.
Check ground connection E9. Refer to Ground Inspection
2.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
Disconnect ECM harness connector.
Check the continuity between ECM harness connector and ground.
Also che ...
Back-up lamp
Wiring Diagram
...