Test E

PINPOINT TEST E: DTC B1890 - PAD WARNING LAMP CIRCUIT SHORT TO BATTERY

Lamp Fault Codes (LFCs)







The lamp fault code (LFC) indicates the specific fault associated with diagnostic trouble code (DTC) B1890.

Test E1:

Test E2:

Test E2-E3:

Test E4:

Test E5:

Normal Operation
When the ignition is in the on position, the PAD indicator prove-out period is initiated by the RCM. The RCM briefly activates the PAD indicator to verify to the occupants correct functional operation of the PAD indicator.

If the restraints control module detects a short to battery on the passenger air bag deactivation (PAD) indicator circuit, it will store diagnostic trouble code (DTC) B1890 in memory and flash lamp fault code (LFC) 10-14 on the air bag indicator.

Possible Causes
A PAD indicator circuit short to battery can be caused by:
- faulted wiring, terminals, or connectors.
- a faulted PAD indicator.
- a faulted RCM.