02-29-2024, 04:12 PM
Hey Gurus,
Here is a fun one.
Have any of you had to fix or replace the DPF aftertreatment harness or sensors on a CAT C15??
My C15 has two codes for bank 1 DPF gas temperature. One each for input and output. Sometimes its "Voltage above normal" and sometimes its " Voltage below normal". I have it at a repair shop that has the CAT diagnostic software. That shop said the coach needs an aftertreatment jumper harness from the engine harness to temperature sensors, as well as a doc inlet clamp and gasket. Of course this info was obtained via CAN bus debugging, not taking anything apart (Shop is disassembling tomorrow). The shop called CAT to get parts, after which CAT said they don't make such a harness and we should call the coach maker. The shop emailed Newell who said they don't touch emission parts. I guess we'll see what we have when they disassemble tomorrow and look for part numbers, if any. I certainly hope the part numbers are on the bad parts, or the parts are obviously failed (such as a broken wire or connector, or sensor that measures out of range, when isolated.
In any event, has anyone had to repair this area or have a wiring diagram? Photos would be great but Santa didn't bring 'em and I can't wait for the Easter Bunny.
Here is a fun one.
Have any of you had to fix or replace the DPF aftertreatment harness or sensors on a CAT C15??
My C15 has two codes for bank 1 DPF gas temperature. One each for input and output. Sometimes its "Voltage above normal" and sometimes its " Voltage below normal". I have it at a repair shop that has the CAT diagnostic software. That shop said the coach needs an aftertreatment jumper harness from the engine harness to temperature sensors, as well as a doc inlet clamp and gasket. Of course this info was obtained via CAN bus debugging, not taking anything apart (Shop is disassembling tomorrow). The shop called CAT to get parts, after which CAT said they don't make such a harness and we should call the coach maker. The shop emailed Newell who said they don't touch emission parts. I guess we'll see what we have when they disassemble tomorrow and look for part numbers, if any. I certainly hope the part numbers are on the bad parts, or the parts are obviously failed (such as a broken wire or connector, or sensor that measures out of range, when isolated.
In any event, has anyone had to repair this area or have a wiring diagram? Photos would be great but Santa didn't bring 'em and I can't wait for the Easter Bunny.
Bob & Dottie
Newell 1261 & Jeep Grand Cherokee fulltimers
Past Teton Reliance 45' 5th wheel
Custom Volvo VNL780 tow vehicle
2014 Smart car
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