FA470 is detecting failure on Flood or/and Focused IR, here is the way to check the components until you find the root cause
The MirrorEye uses IR lights when in night mode.
There are two types of lights:
- Flood IR (night mode);
- IR Focused IR (Enable on Reverse Gear - Only available on MKII).
For more information about how to use, see the article here.
In case of problems with IR related features, follow the steps below:
- Mandatory tools
- Multimeter: will be used to measure the electrical properties like continuity function, output voltage (V) and resistance (Ω).
- Multimeter: will be used to measure the electrical properties like continuity function, output voltage (V) and resistance (Ω).
- Related connectors
- Main harness "ECU" connector
Related pinout table:
Pin Color Description Related Light Meaning 5 Green PF_FR_H Focused IR 12v Power Supply to Left/Right Side 6 Black PF_FR_L Focused IR GND to Left/Right Side 15 Red IR_RS_H Driver Flood IR 12V Power Supply to Left Side 16 Black IR_RS_L Passenger Flood IR GND to Right Side 17 Red IR_LS_H Driver Flood IR 12V Power Supply to Left Side 18 Black IR_LS_L Driver Flood IR GND to Left Side
Pin numbering order:
a
- 8-Pins Wing connector ("Driver Side Camera Wing" and "Passenger Side Camera Wing")
- Main harness "ECU" connector
Related pinout table:
| Pin | Color | Description | Related Light | Meaning |
| 1 | Red |
IR_LS_H IR_RS_H |
Flood IR | 12V Power Supply |
| 2 | Black |
IR_LS_L IR_RS_L |
Flood IR | GND |
| 7 | Green | PF_FR_H | Focused IR | 12v Power Supply |
| 8 | Black | PF_FR_L | Focused IR | GND |
Pin numbering order:
- Identify the side with the problem
- If you have the IR problem with only 1 side of the wing (Driver or Passenger side), filter the available tests below to only the side of your interest.
- If you have the IR problem with both sides, perform all tests below.
3. Main harness "Continuity" test
Warning
Before performing the steps below, ensure that the electrical circuit you are testing has no power.
If the truck is on, turn it off and turn master battery switch off, making sure there is no power coming from the battery.
| Step | Description |
| a |
Set the multimeter to Continuity Test mode (Ω).
|
| b |
Insert one probe into the "8-pin wing" connector and the another into the "ECU" connector, following these combinations and test one pair combination at a time:
|
| c | If the multimeter beeps in each step above, a complete path (continuity) has been detected.
If the circuit is open, the multimeter will not beep.
If test results have no continuity, or results in an open circuit, must replace the main harness.
|
4. Main harness "DC Voltage" test
This verification will require 2 people, one to safely switch gears to reverse, 2nd tech to perform the measurement with the multimeter.
| Step | Description |
| a | If main battery switch was turned off in the previous test, turn back on, and turn on the truck by key cycle. |
| b | Set the gear to reverse and hold on during all the steps below. |
| c |
Turn on the night mode at joystick
|
| c |
Set the multimeter to "DC Voltage" mode (V)
|
| d |
|
| e |
The multimeter should show 12V Power Supply. The acceptable range of this value should be around +- 10%. If the circuit is open, the multimeter will show 0V Power Supply. If test results has no voltage, or results in an open circuit, must replace the main harness.
|
If all the tests performed above pass within spec ranges and the problem persists, the problem is in the wing. Therefore, it will be necessary to replace the ME wing.
Release 12/12/2024 Revision 1/7/2025