logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

Iveco Daily 50c15 (2007) - Rear Left Position Lighting Issue, Possible Controller Location

kisiol 13206 17
Best answers

Where is the body computer/lighting controller located on a 2007 Iveco Daily 50C15, and what could cause the rear left position light and left indicator fault?

Your 2007 Daily does not use a separate lighting controller under the steering wheel; the body computer is by the fuse boxes in the cab at the driver’s left leg, above the OBD area, and the rear lighting runs through it [#16651027][#16651119][#17709431] A connector pinout for the body-computer plugs was shared, so the first check should be the body-computer connectors and wiring rather than the rear beam itself [#16651455] For the left indicator, the thread notes that a fast relay click usually means too little load or a loss at a connector, not necessarily a bad fuse [#16656998] The suggested test points were the plug loads on left side LN18, LN5, AV5 and right side LN6, LN19, AV28 [#16656998]
Generated by the language model.
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Report a violation of the law
Reply | New topic
  • #1 16651014
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    Hello. I have a problem with outdoor lighting. There is no power to the rear left position. I dug the entire beam under the car, I found nothing there, all the wires ok. There are 3 yellow wires to the rear lighting, two position and the backlight of the board. The second thing is the left direction, all the bulbs are ok and the breaker is knocking as if one was burnt. I was looking for a lighting controller, but it is missing under the steering wheel. Maybe someone knows what can be and where the lighting controller is. The car is from 2007. All fuses ok. Diagnostics shows a short circuit on the right and left side of the rear lighting, which is not there, unless the drivers have a short circuit.
  • ADVERTISEMENT
  • #2 16651027
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    This model has a computer body near the fuses and all the lighting goes to the rear.
  • #3 16651035
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    In which place, the fuses, and exactly the fuse box, the one in the cabin and in the engine compartment, I turned out. I found nothing there in the compartment next to the battery is the controller but the ecu engine.

    Added after 34 [minutes]:

    kisiol wrote:
    In which place, the fuses, and exactly the fuse box, the one in the cabin and in the engine compartment, I turned out. I found nothing there in the compartment next to the battery is the controller but the ecu engine.

    Thanks I found was for plastic. Maybe someone has some description of the cubes.
  • #4 16651119
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    At the fuses inside the driver's left leg, I will add a diagram, maybe it will help.
    Attachments:
    • APDC1326.JPG (2.82 MB) You must be logged in to download this attachment.
    • APDC1325.JPG (3.6 MB) You must be logged in to download this attachment.
    • Iveco Daily 50c15 (2007) - Rear Left Position Lighting Issue, Possible Controller Location Body-Comp.Daily IV.JPG (47.94 KB) You must be logged in to download this attachment.
  • #5 16651128
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    Maybe you have some description of the wires
  • ADVERTISEMENT
  • Helpful post
    #6 16651455
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    Description of Body-computer connectors.
    Attachments:
    • Złącze LN.JPG (45.08 KB) You must be logged in to download this attachment.
    • złącze LN.txt (1.44 KB) You must be logged in to download this attachment.
    • Złacze AV.txt (1.92 KB) You must be logged in to download this attachment.
    • żłącze AV.JPG (43.01 KB) You must be logged in to download this attachment.
    • Złącza Body Daily IV.JPG (57.69 KB) You must be logged in to download this attachment.
    • Złącze PF.txt (1.39 KB) You must be logged in to download this attachment.
    • ZłączePF.JPG (39.1 KB) You must be logged in to download this attachment.
  • ADVERTISEMENT
  • #7 16651467
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    Thanks a lot.
  • #8 16655302
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    In order not to start a new topic. Maybe you have an electric glass diagram. There is no switch in the passenger door, only 4 wires.
  • #9 16655459
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    I have something like this for 6 wires should match. :D
    Attachments:
    • APDC1330.JPG (2.8 MB) You must be logged in to download this attachment.
  • #10 16655521
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    Ok thanks, I'll see tomorrow. Maybe you know it, because there is still a strange behavior of the passenger window. When opening the door, regardless of whether the driver's or passenger's door, the passenger's window always drops by 3 cm. When you close the door, the glass goes up. How it is connected to the door sensors.
  • ADVERTISEMENT
  • #11 16655567
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    It's hard to say I didn't go over this topic.
  • #12 16655586
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    What is this driver marked in the scheme 75004 and 75008
  • #13 16655640
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    It is a door driver and with glass it is a wider problem. Here are some internet entries.
    Attachments:
    • Iveco Daily elektryczne szyby.txt (878 Bytes) You must be logged in to download this attachment.
  • #14 16655649
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    Thanks tomorrow they will fight. And this 75008 is a passenger side switch? One more direction to the left as the longer it comes, the relay starts quickly knocking. Bulbs are all good.
  • #15 16656998
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    Direction indicators also come out of the body. Higher frequency means too little load, maybe bulbs do not meet the standard or loss on the connector. Measure loads on the plugs, left side LN18, LN5, AV5 right side LN6, LN19, AV28.
  • #16 16657254
    kisiol
    Level 20  
    Posts: 1643
    Help: 36
    Rate: 468
    Thanks. I noticed that when you hit the mirror housing, it repairs itself.
  • #17 17708004
    Spin600V
    Level 11  
    Posts: 55
    Rate: 10
    Hello, in order not to do another topic, what cube is LN (color and place)? I need it because I have a short circuit against the foggy left pin 43
    best regards
  • #18 17709431
    Hart3
    Level 26  
    Posts: 630
    Help: 100
    Rate: 472
    In post 6 you have Body Connectors ..., above OBD is LN connector.
Reply | New topic
Report a violation of the law

Topic summary

✨ The discussion revolves around a lighting issue in a 2007 Iveco Daily 50c15, specifically the lack of power to the rear left position light. The user has checked the wiring and fuses but found no faults. Responses indicate that the body computer, which controls the lighting, is located near the fuses, and suggestions include checking the connectors and load measurements on the plugs. There are also mentions of potential issues with the direction indicators and window controls, indicating broader electrical problems. The user seeks further information on wiring diagrams and the location of specific connectors related to the lighting system.
Generated by the language model.

FAQ

TL;DR: For a 2007 Iveco Daily, fast indicator blink = low load, and six feed pins handle turn signals; “Higher frequency means too little load.” [Elektroda, Hart3, post #16656998]

Why it matters:** This FAQ helps owners quickly locate the body computer, identify connectors/pins, and fix rear-left position light faults without guesswork.

Quick Facts

Where is the lighting controller/body computer on a 2007 Iveco Daily?

It is mounted near the interior fusebox at the driver’s left leg. Access it by removing the lower trim and inspecting the fuse area. The body computer handles exterior lighting distribution to the rear, so start diagnostics here when a rear lamp loses power. This placement lets you back-probe connectors without crawling under the vehicle. “At the fuses inside the driver’s left leg.” [Elektroda, Hart3, post #16651119]

Which connector is the LN plug, and where do I find it?

The LN plug is a labeled body-computer connector situated above the OBD port under the dashboard. Look up from the OBD to spot the LN housing and locking tab. This is the reference point used in pin callouts for indicators and other rear lighting feeds. Knowing its position speeds up pin testing and load checks. [Elektroda, Hart3, post #17709431]

How do I diagnose no power to the rear left position light?

Confirm the three yellow rear-loom wires, then trace power from the body computer to the left position feed. Inspect the LN connector for corrosion or a backed-out terminal. If wiring continuity is good, suspect an internal body-computer channel fault. Work from the fusebox area toward the rear to isolate the break. Document wire colors before repairs. [Elektroda, kisiol, post #16651014]

Why is my left indicator blinking fast even though bulbs look fine?

Fast flash indicates low load detected by the body computer. Causes include high-resistance connectors, wrong-wattage bulbs, or an open in one lamp. Check actual current at the connector pins and verify correct bulb specs. “Higher frequency means too little load.” If load is normal, inspect grounds. Replace poor connectors to restore proper cadence. [Elektroda, Hart3, post #16656998]

What pins feed the indicators from the body computer?

From the body computer: left indicator feeds are LN18, LN5, and AV5. Right indicator feeds are LN6, LN19, and AV28. Use these pins to measure voltage and current under load while signaling. This helps pinpoint a weak path without dismantling the entire loom. Label each lead before reconnecting to avoid crosswiring. [Elektroda, Hart3, post #16656998]

Do all rear lights go through the body computer on this model?

Yes. The 2007 Daily routes exterior lighting through the body computer, which then feeds the rear harness. This architecture allows the module to monitor load and react to faults, including fast-blink behavior. Check the body-computer outputs before chasing long harness runs. It centralizes most lighting diagnostics under the dash. [Elektroda, Hart3, post #16651027]

Is there a quick way to test indicator outputs at the body computer?

Use this 3-step method:
  1. Back-probe LN18/LN5/AV5 (left) or LN6/LN19/AV28 (right) while signaling.
  2. Measure voltage drop across the connector under load.
  3. Compare current draw to the working side to confirm low-load faults. This isolates connector or wiring losses fast. [Elektroda, Hart3, post #16656998]

My mirror tap temporarily fixes the indicator—what does that mean?

A tap that restores function points to an intermittent connection in the mirror assembly or its connector. The impact reseats a loose terminal or overcomes oxidation briefly. Inspect the mirror plug, contacts, and lamp holder tension. Replace damaged terminals to prevent repeat failures. This is a classic edge-case of mechanical contact failure. [Elektroda, kisiol, post #16657254]

Where can I get the body-computer connector descriptions or diagrams?

A forum contributor shared the body-computer connector descriptions in the same discussion. Review those diagrams before probing pins to avoid misidentifying circuits. Print the legend and mark the LN, AV, and corresponding cavity numbers. Accurate identification prevents shorts and speeds fault isolation. [Elektroda, Hart3, post #16651455]

What does 75004 or 75008 mean on the door wiring diagrams?

Those identifiers refer to the door driver (door control module) units. They manage window and related door functions, so glass issues often trace back here. If you see erratic window behavior, test the door module inputs and outputs before replacing switches. “It is a door driver and with glass it is a wider problem.” [Elektroda, Hart3, post #16655640]

Passenger window drops 3 cm when any door opens—normal or fault?

That symptom indicates door-module logic reacting to door-ajar signals. On this vehicle, a user observed a 3 cm drop with both doors opening, then auto-up when closed. Check door sensors and the door driver module for calibration or signal faults. Inspect switch wiring if the passenger switch is absent. [Elektroda, kisiol, post #16655521]

I need the fog-light left pin (short on pin 43). Which connector do I check?

Use the LN connector reference point located above the OBD socket. From there, identify the specific cavity numbering to reach pin 43 for the fog circuit. Verify for shorts to ground with the lamp disconnected to rule out harness damage downstream. Always depin with the correct tool. [Elektroda, Hart3, post #17709431]

Are non-standard bulbs a known cause of fast indicator flashing here?

Yes. The body computer interprets reduced load from incorrect bulbs as a fault, increasing flash rate. Fit bulbs that meet the specified wattage and inspect for connector losses. Measure loads at the LN/AV pins under operation to confirm compliance. Replace any out-of-spec lamps and corroded sockets. [Elektroda, Hart3, post #16656998]

How many rear-loom yellow wires should I expect for position and plate lights?

Expect three yellow conductors feeding two position circuits and the license-plate illumination. Verify each with a continuity and load test rather than relying on color alone. Document routing before repairs to maintain circuit integrity. Color conventions can vary after prior repairs. [Elektroda, kisiol, post #16651014]

Is the body computer missing if I don’t see a module under the steering wheel?

It may just be hidden behind plastic trim near the fuse area by your left leg. Remove the correct panel beside the fusebox to reveal it. One user initially missed it until removing plastic. Look for multiple multi-pin connectors including the LN plug. [Elektroda, kisiol, post #16651035]
Generated by the language model.
ADVERTISEMENT