# Service bulletin PIT5509C

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10118238
- Published by NHTSA: 2017\-10\-04
- Manufacturer's number: PIT5509C
- Manufacturer's date: 2017\-06\-06
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System\” message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7\-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10118238-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10118238-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Software

## Trouble codes named

C1114

## Vehicles listed

- 2015 to 2017 CHEVROLET COLORADO
- 2017 CHEVROLET SILVERADO
- 2014 CHEVROLET SILVERADO 1500
- 2015 to 2016 CHEVROLET SILVERADO 2500
- 2015 to 2017 CHEVROLET SUBURBAN
- 2015 to 2017 CHEVROLET TAHOE
- 2015 to 2017 GMC CANYON
- 2017 GMC SIERRA
- 2014 to 2016 GMC SIERRA 1500
- 2015 to 2017 GMC YUKON
- 2015 to 2017 GMC YUKON XL

## Recalls for the same vehicles and component

- [16V084000](/recalls/nhtsa/16V084000.md), 2016-02-11: ELECTRICAL SYSTEM:SOFTWARE
- [14V301000](/recalls/nhtsa/14V301000.md), 2014-06-06: ELECTRICAL SYSTEM:SOFTWARE; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

## Other bulletins for the same vehicles and component

- [20\-NA\-132](/bulletins/10252774.md), 2024-04-05, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [PIT5350](/bulletins/10252160.md), 2024-04-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Programming IPC Engine Hours Into A Replacement IPC.
- [130089004H](/bulletins/10246623.md), 2023-12-11, Service bulletin: VISIBILITY:WINDSHIELD; UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:LIGHTING CONTROL MODULE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; VEHICLE SPEED CONTROL:THROTTLE:THROTTLE POSITION SENSOR \(TPS\). Car and Truck Fix it Right the First Time Issues
- [130089003](/bulletins/10246614.md), 2023-12-11, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Vehicle Software Enhancements
- [PIP5632G](/bulletins/10230683.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
- [PIP4902Q](/bulletins/10230682.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
- [N182191300](/bulletins/10212572.md), 2022-05-31, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Customer Satisfaction. In certain vehicles, certain types of off\-road use can, in rare cases, cause the vehicle?s roof\-rail air bags and seat belt pretensioners to deploy. Dealers will reprogram the sensing and diagnostic module \(SDM\) with updated software.
- [15\-NA\-083](/bulletins/10190387.md), 2021-04-20, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Recovery Process from a Controller Reprogramming Interruption During service reprogramming of the T87 TCM, some technicians may notice the TCM may fail during the reprogramming event and become unresponsive to the Service Programming System \(SPS\), unresponsive to the GDS2 tool. This bulletin addresses corrective actions to attempt to recover the module before declaring the TCM as a bad part and replacing. During reprogramming, an interruption can cause the module to lock up. A module reset may recover the TCM
- [21NA010](/bulletins/10187773.md), 2021-03-01, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to reset the DTCs and take the vehicle for a test drive to verify the codes do not return.
- [16NA019](/bulletins/10186058.md), 2021-02-01, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

JSON: [/v1/bulletins/10118238](/v1/bulletins/10118238)

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