How does a BCM work on a headlight relay?
How does a BCM work on a headlight relay?
In either case, the BCM detects the change and energizes or de-energizes the control coil for the headlight relay. This design saves considerable wiring weight and cost and allows the BCM to monitor whether the driver has left the vehicle with the headlights on.
Where are the fuse panels on a corvette?
Here you will find fuse box diagrams of Chevrolet Corvette 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
How is a headlight switch connected to a relay?
The headlight relay is switched by the BCM, which in turn is commanded by the headlight switch. In this case, the headlight switch acts as an input to the BCM. In most cases the wiring to the headlight switch is just a single small gauge wire.
Where is the cigarette lighter fuse in a corvette?
Cigar lighter / power outlet fuses in the Chevrolet Corvette are the fuses №7 (Cigarette Lighter) and 11 (Accessory Power) in the Passenger Compartment fuse box. The passenger compartment fuse box is located under the glove box, in the front-passenger footwell (remove the lining and cover).
Where is the BCM located in a minivan?
It is the first stop for controlling all these functions: After getting inputs from all those switches and sensors, the BCM sends a digital signal to ANOTHER computer to do the actual switching. In the case of headlights, the BCM sends its digital signals to the front control module (FCM) located in the intelligent power module (IPM).
Where are the headlight terminals on a Chrysler minivan?
The numbers start at the center and count upwards towards the driver’s fender. Attach a wire to the battery + terminal and touch the other end to terminals 3, 4, 5, and 6 one at a time. Check for headlight operation. Terminal 3 is the left low beam, 4 is the right high beam, 5 is the left high beam, and 6 is the right low beam.
Where does power go in a BCM Body Control Module?
The power then flowed to the headlight switch, and from the headlight switch to each headlight. The wire used for the run from the fuse to the switch and from the switch to the headlights had to be a large enough gauge to handle the current load of the headlights.
It is the first stop for controlling all these functions: After getting inputs from all those switches and sensors, the BCM sends a digital signal to ANOTHER computer to do the actual switching. In the case of headlights, the BCM sends its digital signals to the front control module (FCM) located in the intelligent power module (IPM).
Where does the ground for the headlamp relays come from?
The ground for the headlamp-relay coils is provided by the body control module (BCM), so to have any headlamp operation, the BCM must provide this ground. So even though we have two headlamp relays and separately fused headlamps, the BCM can still cause loss of all headlamp function.
The numbers start at the center and count upwards towards the driver’s fender. Attach a wire to the battery + terminal and touch the other end to terminals 3, 4, 5, and 6 one at a time. Check for headlight operation. Terminal 3 is the left low beam, 4 is the right high beam, 5 is the left high beam, and 6 is the right low beam.
How does the power switch work on a caravan?
First, the switch does NOT connect or disconnect power to the accessory. Its job is to provide a signal to the body control module (BCM), informing it that the driver wants to operate an accessory. Now some of these switches actually connect or disconnect low voltage (usually 5-volts) to the control module.
