Your Volvo 940 engine control system detects a problem, the computer stores the diagnostic trouble
code B1636 in its memory.
To figure out what is wrong with your vehicle you must first extract the B1636 DTC For Volvo 940.
On 1999 and later B1636 Volvo 940 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
B1636 Volvo 940 DTC Meaning
Body Code - Problem is antilock brake system, electronic suspension and steering systems.
MFG - Manufacturer Specific
Vehicle Speed Control And Idle Control System
Low Coolant Circuit
Transmission Control Module Reprogrammable Memory
While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the B1636 Volvo 940 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.