Question 1

How to replace the ABS Control Module on Buick LeSabre?

Accepted Answer

First turn off the ignition power then raise the vehicle to perform ABS Control Module (ABSCM) replacement work. First remove the left front wheel and left front fascia extension while cleaning all contaminants away from the ABSCM installation area. Wash the ABSCM area thoroughly before rotating the connector tab for unlocking position and taking off the ABSCM position assurance from its electrical connector. The wiring harness connection requires an OFF ignition because the system will experience damage otherwise. Disconnect the ABSCM electrical connector from the ABSCM then take the brake pressure modulator valve (BPMV) electrical connector from the ABSCM. The ABSCM/BPMV assembly requires cleaning of its surface prior to replacement after the removal of its 6 ABSCM to BPMV screws because an injured ABSCM will need replacing. Disengage both the ABSCM unit from the BPMV assembly. Installation begins with cleaning the BPMV surface after which the ABSCM should be positioned onto the BPMV while applying torque of 3.2 N.m (28 lb in) to the 6 screws. The BPMV electrical connector should connect to the ABSCM while the ABSCM electrical connector should match up to the ABSCM. Then secure the connector position assurance to the ABSCM electrical connector. After locking the ABSCM connector tab downward you can reinstall both the left front fascia extension and left front wheel. Lower the vehicle. An unprogrammed ABSCM may result in DRP/ABS/TIM/VSES/TIM/VES (if equipped) malfunctions along with triggering DTC C1248 ABSCM Turned On the Red Brake Warning Indicator and DTC C1255m3 ABSCM Internal Malfunction. The ABSCM replacement requires programming with the vehicle-specific software and DTC clearing through the scan tool as a prerequisite for ABS Diagnostic System Check execution.

Question 2

How to replace the ABS Control Module on Buick LaCrosse?

Accepted Answer

The replacement of ABS Control Module requires the ignition to be set to OFF. Before replacing the ABS Control Module on the 3.8L engine start by taking out the fuel injector sight shield together with the front fender upper diagonal brace and air cleaner intake duct. Use a finger to pull the locking tab from the ABS Control Module harness connector and after proceed with harness removal. A thorough cleaning must precede the removal process for retaining bolt/screws that secure the 6 ABS Control Module to brake pressure modulator valve (BPMV). The proper method to handle ABS Control Module and BPMV separation requires processor disconnection without the use of force to prevent damage to BPMV or solenoid components. Connect the pump motor connector at the bottom of the ABS Control Module then assemble the ABS Control Module onto the BPMV and screw in retaining bolt/screws to 2.9 Nm (26 inch lbs.). The process ends by reinstalling the air cleaner intake duct followed by the front fender upper diagonal brace then the fuel injector sight shield when needed. Perform the Diagnostic System Check - Vehicle by switching the ignition to RUN while avoiding engine start and keep the engine off during this step.

Question 3

How to replace the ABS Control Module on Buick Regal?

Accepted Answer

You should start the ABS Control Module (ABSCM) replacement process by setting the ignition switch to off because this stops equipment damage from occurring. The first step requires eliminating the fuel injector sight shield from 3.8 l engines followed by removal of the front fender upper diagonal brace. Accomplish disconnecting first the Cruise Control Module from the left strut tower along with the accelerator control cable from its bracket without cutting the cable. Set aside the module and cables in their current locations. The procedure starts with removing the air cleaner intake duct followed by loosening the red locking tab from the connector lock tab. Subsequently detach the abscm harness connector by moving the sliding connector cover to the open position. Clean the component assembly and separate the four abscm to bpmv retainers while taking precautions against toolkit damage to the bpmv surface or solenoid valves. The abscm separation from bpmv should be conducted without excessive force. Attach the abscm to the bpmv while installing four retainers that require tightening to 5 nm (44 inch lbs.). Next step is to connect the abscm harness connector while pushing down the lock tab until you reach the locked position which reengages the red locking tab. After that, reinstall the air cleaner intake duct along with the module and cables and connect the Cruise Control Module at the left strut tower. Reposition the accelerator and cruise control cable to its bracket on the accelerator control cable bracket while also installing the front fender upper diagonal brace and fuel injector sight shield which applies to 3.8l engine models only. End the procedure by using the ignition key to access the run position without starting the engine and initiating the diagnostic system check - abs.

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