Test H: LFC 18/DTC B1890 - PAD Warning Lamp Circuit Short to Battery

PINPOINT TEST H: LFC 18/DTC B1890 - PAD WARNING LAMP CIRCUIT SHORT TO BATTERY

Normal Operation
The restraints control module (RCM) has the ability to deactivate the passenger air bag under certain conditions. When the passenger air bag is deactivated, the passenger air bag deactivation (PAD) switch warning lamp will be illuminated.

The RCM monitors the PAD switch warning lamp for short to battery conditions. If the RCM detects a short to battery condition on the PAD switch warning lamp circuit, it will store a DTC B1890 in memory and send a message to the instrument cluster (IC) module to flash LFC 18 (or higher priority code if one exists) on the air bag warning indicator.

- DTC B1890 PAD Warning Lamp Circuit Short to Battery - If the RCM detects a short to battery on the PAD indicator circuit when the indicator is activated for greater than 2.2 seconds, it will set this DTC.

This pinpoint test is intended to diagnose the following:
- Wiring, terminal or connectors
- PAD switch
- RCM

H1-H3:

H4-H5: