HOWO T7 High quality fuel combination meter WG9716582245

Description

Basic Information of the fuel combination meter WG9716582245:

Brand: Includes brands such as American and Japanese, as well as SINOTRUCK (which is the brand of China Heavy Truck).
Model: fuel combination meter WG9716582245

Instrument panel fuel combination meter WG9716582245 applicable vehicle models:
Mainly applicable to the Haowo series of vehicles produced by Hongqi, such as the 2008 model HOWO dump truck.

Function features of the fuel combination meter WG9716582245:

Rich information display: Through the CAN bus, information such as the rotational speed, water temperature, oil pressure, fuel consumption, total fuel consumption, and multiple torque of the Euro III common rail engine can be obtained; when installing the paper disc type driving record instrument MTCO, the vehicle speed, mileage, and time can be displayed; for Euro IV/Euro V engines, the urea liquid level, fuel water ingress, etc. can also be displayed; the rotational speed, water temperature, and oil pressure of the T12 natural gas engine can also be displayed in real time.

High reliability: Produced by enterprises specializing in the research, production and sales of automotive instruments, the quality is reliable, the product has a long service life, and it can replace the same model of instruments produced by Xiangfan Instrument Factory.

Common faults of the fuel combination meter WG9716582245:

1. The instrument pointer is not moving or stuck.
Possible causes: Wear and jamming of the internal mechanical structure of the pointer; abnormal signals from the corresponding sensors (such as failure of the speed sensor or water temperature sensor); loose connections in the instrument circuit.

2. The numbers or indicator lights are not on or flickering
Possible causes: The LED bulbs inside the instrument are damaged; there is poor contact or short circuit in the wiring; the power supply voltage is unstable; there is a fault in the related circuits of the instrument motherboard.

3. Display information disorder (such as mileage jumps, abnormal fuel consumption)
Possible causes: CAN bus communication failure (such as line interference, connector oxidation); damage to the instrument storage chip; abnormal signals sent by the engine ECU.

Solution for the malfunction of the Solution for the malfunction of fuel combination meter WG9716582245:

1. The instrument pointer is not moving or stuck.
Troubleshooting steps:
First, check the corresponding sensors (such as the speed sensor, water temperature sensor): disconnect the sensor plug, and measure the resistance or signal output with a multimeter (for example, the speed sensor should output a pulse signal). If the sensor is damaged, replace it with a sensor of the same model.

If the sensor is normal, check the wiring connection between the instrument and the sensor: remove the instrument plug, clean the oxidation layer on the pins, and reinsert it tightly; if the wiring is broken, repair or replace the wiring harness.

If both the wiring and the sensor are normal, it may be that the pointer is mechanically stuck: remove the instrument cover (requires professional tools), gently move the pointer to check if it is stuck, if the wear is severe, it is recommended to replace the instrument assembly (the mechanical components are difficult to repair and are prone to secondary damage).

2. The digital display or indicator lights do not light up or flash.
Troubleshooting steps:
Check the power voltage: use a multimeter to measure the voltage at the instrument’s power supply terminal (usually 12V or 24V), if the voltage is unstable, repair the vehicle’s generator or battery.

Check the wiring contact: focus on checking the instrument plug, the grounding point (such as the vehicle’s grounding bolt), use sandpaper to polish the oxidation layer, ensure a secure connection.

If it is an LED light bulb failure: for instruments that can replace the light bulb separately (need to confirm the structure), replace it with the same model LED; if it is integrated on the mainboard, it is recommended to replace the instrument mainboard or assembly.
Mainboard circuit failure: professional maintenance personnel need to test the mainboard capacitors, resistors, etc., if damaged, replace the corresponding components, if repairable, replace the instrument.

3. The display information is incorrect (mileage jumps, abnormal fuel consumption)
Troubleshooting steps:
Check the CAN bus: use a diagnostic tool to read the CAN communication status, if there is interference or interruption, check if the bus wiring harness is damaged, if the connector is waterlogged, repair and reconnect it; if the CAN bus is normal, check the engine ECU: if the ECU sends abnormal signals (such as incorrect fuel consumption data), upgrade the ECU program or repair the ECU.

Instrument storage chip failure: such problems usually require replacing the instrument assembly, as the chip data is highly matched with the vehicle, after repair, compatibility issues may occur.