L200 L4-2.2L VIN F (2002)
^
Delay 2 (1000 ohms resistance, one swipe every 7 seconds)
^
Delay 1 (500 ohms resistance, one swipe every 2 seconds)
Key-In-Ignition
When the ignition key is seated in the ignition switch, the key-in-ignition switch contacts close grounding circuit 80. The BCM monitors the state of the
key-in-ignition switch, the state of the ignition switch (OFF, ACC or RUN) and the driver's door to control the key-in-ignition chime.
Keyless Entry Transmitter
The BCM will set DTC B3109 - Keyless Entry Transmitter Low Battery when the transmitter battery voltage is below 2.5 volts. Nominal transmitter
battery voltage is 3.0 volts.
Low Brake Fluid
Under low brake fluid conditions, the brake fluid switch closes. When closed, the brake fluid switch grounds circuit 333.
The BCM responds by sending a serial data message to the Instrument Panel Cluster (IPC) to turn On the brake telltale.
Notification Feature
The Body Control Module (BCM) provides a notification feature that will unlock all of the doors if the vehicle is equipped with power door locks, turn
on the dome lamp and flash the Daytime Running Lights (DRL's). The Sensing And Diagnostic Module (SDM) will send the air bag deployed message
to the BCM. The BCM will begin the notification event 15 seconds after receiving the message. The BCM will continue flashing the DRL's and keep the
dome lamp on until the ignition is turned from on to off then on. The notification feature is enabled from the factory on all L-Series vehicles.
Odometer
The BCM calculates vehicle mileage from rolling count data sent to the BCM by CAN message from the ECM on L81 and by Class II message from the
PCM on L61 vehicles. The BCM sends the mileage data to the cluster over serial data to display the vehicle mileage.
Oil Life Reset
When engine coolant is at the proper level, the low coolant switch is closed. When in this condition, battery voltage is applied to the low coolant circuit
1478 input of the BCM.
When coolant is below the proper level, the low coolant switch opens. Because no voltage is applied to circuit 1478 the BCM responds by sending a
serial data message to the instrument panel cluster to turn On the low coolant telltale.
The BCM has an internal timer, which will not turn On the low coolant telltale unless the coolant level is low for greater than 30 seconds. The timer
avoids coolant sloshing, falsely turning on the low coolant telltale.
Option Configuration
The vehicle option content information must be entered as part of the BCM programming procedure. If the vehicle option content information is not
included and programming procedure is completed, DTC B1001 - Option Configuration Error will set.
Park Brake
When the park brake input circuit 1134 to the BCM is grounded (as when the parking brake is applied), the BCM will turn on the brake telltale by
sending a serial data message to the Instrument Panel Cluster (IPC).
If the vehicle is moving at greater than 3 mph and the park brake input to the BCM is grounded, the BCM will sound the warning chime to notify the
driver the parking brake is applied. DTC B0005 - Park Brake Switch Circuit Low will set under these conditions.
Park Lamp Switch
The BCM compares the state of the park lamp circuit 9 to the high beam headlamp circuit 1200 and the low beam headlamp circuit 1201.
If the park lamp circuit is grounded/open and either the low beam circuit is at battery voltage or the high beam circuit is grounded, DTC B2662 -
Parklamp Switch Circuit Malfunction will set.
Power Mode
The BCM monitors ignition 1 voltage circuit 339, ignition 2 voltage circuit 743 and the Engine Run Flag (ERF). The ERF is a serial data message from
the engine controller. The BCM determines the state of the ignition switch for all modules on the serial data link.
Rear Washer Motor
The BCM monitors the rear washer motor circuit 392. When a rear windshield wash is requested for more than two minutes circuit 392 at battery
voltage, the BCM will turn Off the rear wiper motor if the rear wiper is NOT requested by the wiper switch.
