What to do if the reversing camera of Sagitar does not display?
3 Answers
The reasons and solutions for the Sagitar reversing camera not displaying are as follows: 1. The camera is damaged or blocked. If the camera is damaged, the image cannot be transmitted to the computer, and thus it cannot be displayed. It is recommended that the owner promptly go for maintenance and replace the camera if necessary. 2. Poor wire contact. If the owner often drives on rough roads, the bumpy environment may cause the internal wires of the car to loosen or fall off. When the wire contact is poor, the image mapped by the camera cannot be transmitted to the host. In this case, it is necessary to check the wires inside the center console. 3. The battery is dead. When the car is in the off state, prolonged use of lights or multimedia can lead to battery depletion. When the battery is insufficient or dead, the car's multimedia system will not work, and the reversing camera will disappear. In this case, simply recharge the battery or replace it with a new one.
In our Volkswagen owners' group, we often discuss the issue of reversing camera screens going black. Last time I encountered this, I did some basic troubleshooting myself: when starting the vehicle and shifting to R gear, listen carefully for the electrical working sound of the camera - if there's sound, it means power supply is normal and it might be a lens or screen issue. Then check the camera on the inner side of the trunk lid, where dust and condensation tend to accumulate. Wipe the lens with a damp cloth and use a hairdryer on cool setting to blow the connectors. Volkswagen's wiring harness routing is quite tricky, so I recommend opening the right-side trim panel in the trunk to check if the wiring harness connectors are loose - last year after car washing, my black screen issue was due to water ingress and oxidation in the plug. If all seems fine, disconnect the negative terminal for five minutes to reset the head unit, as many electronic faults can be resolved this way. If the problem persists, you'll need to visit the dealership to read fault codes - might need to replace the camera module, costing around 800 to 1500.
Over the years of working in auto repair, I've encountered countless reversing camera failures. When repairing the Sagitar, I typically approach the issue from three angles: First, check the battery voltage—anything below 12V can cause electronic device malfunctions. Next, inspect the F49 fuse (position 49 in the fuse box under the steering wheel), as this 7.5A fuse specifically controls power supply to the reversing camera. Then, observe whether the small green light above the camera is blinking; if not, remove the license plate light cover to inspect the power cable. The most troublesome issue involves wiring harness problems—cables at the trunk hinge area are prone to breakage due to repeated bending. When peeling open the corrugated tube, you'll see red, yellow, and blue wires. Use a multimeter to test continuity while opening and closing the tailgate a dozen times to simulate daily usage. Wire breakpoints are typically hidden at the second bend of the hinge. For repairs, use tinned copper wire with heat shrink tubing for splicing.
