What causes a fault on a Volvo FH12?
Release the button. Registered codes in the memory of the engine control unit will be erased and will not appear until a fault appears. Accelerator pedal sensor. Accelerator pedal sensor defective or wiring between engine control unit and pedal damaged. If you do not fully press the accelerator pedal, a sharp increase in engine speed may occur.
Why does the exhaust brake come on on a Volvo?
If you start the truck with low air in the tanks, you should also hear the exhaust brake come on as air pressure builds after you start the engine. The Volvos use the exhaust brake to help the engine warm up faster (and stay warm at idle).
What kind of brake does a Volvo truck use?
The Volvo Engine Brake, VEB, combines the Volvo Compression Brake and the Exhaust Pressure Governor in the rpm range and results in an outstanding braking performance. The Volvo Compression Brake is integrated in the valve system. It is unique and the design is patented.
How does cruise control work on a Volvo FH12?
The signal from the cruise control switch is a prerequisite for cruise control and the ability to manually set a constant engine speed for power take-off. The active signal from the “ON” and “SET” buttons on the cruise control switch. When the vehicle is moving , cruise control is activated.
How to fix a Volvo ECU ABS fault?
Switch off the ignition, wait at least 15 seconds, the data will be reset from the control unit of the brake system. Do not depress the brake pedal during this time; Wait at least 15 seconds. At this time the car should not move, do not press the brake pedal.
What are the fault codes of ECU ABS, EBS?
Do not press the brake pedal for 5 seconds. In case of a successful restart, the red triangle on the dashboard will go out, the fault codes will become inactive. Functions EBS, ABS is not limited. In the event of a failed restart, the triangle will not go out, the brake system remains faulty. the car was moving.
Where is the ECU located on a Volvo?
ECU location: Fitted to the back of the ABS pump (held on with four torx screws that are easily removed with a 4mm socket). This is a very common failure on all Volvo ABS pumps built after 1995, causing the ABS light to come on along with the traction control light if fitted.
How do you adjust timing gear on a Volvo truck?
Using light hand pressure, slowly rotate the camgear clockwise until the camshaft TDC mark is between the two hash marks. Note: Check to ensure that the feeler gauge is in place on the loaded side of the camshaft gear and the adjustable idler gear. Volvo Trucks North America, Inc.Date Group No. Page TSI10
Where is the timing sensor on a Volvo truck?
The Camshaft Position Sensor is located at the rear of the engine in the face of the timing gear cover near the bottom of the valve cover. It uses magnetic induction to generate a pulsed electrical signal. It senses the passage of seven (7) timing bumps on the edge of the camshaft dampener.