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Dongfeng off-road vehicle Electrical equipment common fault and exclude - EQ2102 Circuit FAQ (8)

Views: 1     Author: Site Editor     Publish Time: 2022-01-03      Origin: Site

18, the wiper does not work

Cause Analysis:

1, fuse rest

2, the wiper suspension brush connection mechanism falls off

3, wiper motor damage

4. Wiper motor wire welding welding.

Method of exclusion:

1. Check if the fuse is burned, the wire harness of the insurance line;

2, open the wiper, listen carefully if there is a motor work sound, if there is a sound, please explain the link mechanism ball, need to install;

3, if the above defects are not excluded, the wiper still does not work, indicating that the scraping motor needs to remain or replace the fault;

4. Check if the scraping motor is turned on, if there is no way to explain out of the station welding,

IMG_5384EQ2102 Detail Exhibition

19. When using a windshield scrubber, the nozzle does not spray

Cause Analysis:

1. Determination of spray motor harness deduction or combined switch contact;

2, poor motor contact;

3. Washing tube bending.

Method of exclusion:

1. Check if the motor harness is dropped, the combined switch harness is in the contact state;

2, check if the contact on the motor is poor;

3, open the scrubber. If you hear the working sound of the motor, it still does not spray, indicating that the pipe is blocked or curved.

WeChat picture _20210401082459.Dongfeng Tianjin 2102

Twenty, engine exhaust brakes do not work

Cause Analysis:

1, combined switching line harness plug contact;

2. Exhaust brake switch inner wire joint welding;

3, the clutch switch is broken;

4, the throttle switch on the engine high pressure oil pump is damaged or poor contact;

5, exhaust brake solenoid valve damage or air pressure is not enough;

6. Poor contact in front of the cab.

IMG_7671.EQ2102 Cab detailed display

Method of exclusion:

1. Check if the combined switch harness plug has poor contact or wire head;

2, measure whether the exhaust brake opening is electrically, if there is no electric power, the exhaust system is opened;

3. Measure the scanned electronic brake solenoid valve joint, if it is powerless, please indicate the damage of the clutch switch or contact of the front package beam of the cab;

As shown in FIG. 4, if the exhaust gas brake solenoid valve solenoid valve, check whether the throttle switch is electrically, if no electricity, the exhaust gas brake solenoid valve is damaged;

5. If the throttle switch is powered, check if the compression stroke of the throttle switch is too small. Adjust;

6. If the exhaust brake solenoid valve has a sound, open the exhaust brake switch. The exhaust brake still does not work, indicating that the gas pressure is not enough or the pipeline is traveling.

IMG_7691.EQ2102G chassis

This article reprints from the following products: Dongfeng Truck company heavy vehicle factory - \\\"military Dongfeng off-road vehicle adjustment and maintenance manual \\\"

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Address: No. 6, Huimin Road, Maojian District, Shiyan City, Hubei Province, China
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