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I have no clearance lights or headlights on my 2013 CHU

Customer Question
I have no clearance...

I have no clearance lights or headlights on my 2013 CHU Mack, but I do have driving lights, brake, and turn signals. I've swapped out the main switch and checked fuses still no luck. However I can run a hot wire over to one of my front park lights and they all work.

Mechanic's Assistant: Have you checked the fuses? Have you checked the bulbs?

Yes

Mechanic's Assistant: What is the make/model of your car?

2013 Mack CHU613

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

Yes, I am fixing it myself. I've swapped out main switch, checked all fuses, and checked all the bulbs. I can run a hot wire over to one of my front park lights and they all work.

Submitted: 4 years ago.Category: Medium and Heavy Trucks
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Answered in 9 hours by:
5/8/2018
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 4 years ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,782
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified

Hello, My name is***** am a Volvo/Mack master tech, allow me a moment to look over your issue and I will get you on the right track to figuring this out. Thanks

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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 4 years ago

I have attached the schematics for the clearance lamps for your unit. I have also attached the pin layout and wire numbering on the turn signal switch. I will attach the headlamp one also and explain what to check.

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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 4 years ago

Here is the 2 schematics for the headlamps. You need to pull the steering column cover off and first check the connections at the turn signal switch, There is only 2 small plastic holders that hold the connector on and sometimes they can work themselves off. Then you will need to check the flash to pass portion of the switch to see if it is kicking those 2 circuits off. Let me know if you have any questions.

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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,782
6,782 Satisfied Customers
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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