On 2003-06 Chevrolet Express and GMC Savana vans equipped with the trailer towing package RPO Z82, the additional electrical load from the trailer's turn signals and stop lights is handled by relays and not the turn signal/hazard flasher module. Refer to SI document 848202 for a wiring diagram.
Vans without RPO Z82 use a turn signal/hazard flasher module to handle the electrical load of the van's turn signals and stop lights. Adding additional lights to this system may cause premature failure of the turn signal/hazard flasher module.
TIP: If an owner inquires about a trailer wiring harness for a van not equipped withÂ
Z82, explain that the trailer cannot have more than one stop/turn bulb per side. If a trailer with more than one stop/turn bulb per side is connected, it may cause premature failure of the turn signal/hazard flasher module.
- Thanks to Ron Erman
Vans without RPO Z82 use a turn signal/hazard flasher module to handle the electrical load of the van's turn signals and stop lights. Adding additional lights to this system may cause premature failure of the turn signal/hazard flasher module.
TIP: If an owner inquires about a trailer wiring harness for a van not equipped withÂ
Z82, explain that the trailer cannot have more than one stop/turn bulb per side. If a trailer with more than one stop/turn bulb per side is connected, it may cause premature failure of the turn signal/hazard flasher module.
- Thanks to Ron Erman
Leave a comment