| Subject: | Diagnostic Tip - DTC P26BB, P1098 and/or P26B7 | 
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Buick | Encore GX | 2020-2021 | All | All | 1.3L (L3T) | All | |
| Cadillac | CT4-CT4-V | 2020 - 2021 | All | All | 2.0L (LSY) 2.7L (L3B) | All | |
| Cadillac | CT5 | 2020-2021 | All | All | 2.0L (LSY) | All | |
| Cadillac | XT4 | 2019-2021 | All | All | 2.0L (LSY) | All | |
| Cadillac | XT5 | 2020-2021 | All | All | 2.0L (LSY) | All | |
| Cadillac | XT6 | 2020-2021 | All | All | 2.0L (LSY) | All | |
| Chevrolet | Blazer | 2020-2021 | All | All | 2.0L (LSY) | All | |
| Chevrolet | Silverado 1500 (New Model) | 2019-2021 | All | All | 2.7L (L3B) | All | |
| Chevrolet | Trailblazer | 2021 | All | All | 1.3L (L3T) | All | |
| GMC | Acadia | 2020-2021 | All | All | 2.0L (LSY) | All | |
| GMC | Sierra 1500 (New Model) | 2019-2021 | All | All | 2.7L (L3B) | All | |
| Involved Region or Country | North America | 
| Condition | MIL on P26BB, P1098, and/or P26B7 | 
| Cause | Potential Engine Coolant Control Valve Connection Contamination | 
A technician may encounter one of the listed vehicles for a MIL on concern with P26BB, P1098 and/or P26B7 stored current or in history.
During Strategy Based Diagnosis, be sure to inspect all Engine Coolant Control Valve electrical connections for signs of contamination or corrosion.
| Version | 1 | 
| Modified | 01/27/2021 – Created on. | 
											  Article ID: 52
											  Created: January 29, 2021
											  Last Updated: January 29, 2021
											  Author: Rob
											
Online URL: https://www.cadillacvnet.com/knowledge-base/article/2020-2021-cadillac-ct4-v-service-bulletin-pip5777-diagnostic-tip-dtc-p26bb-p1098-and-or-p26b7-jan-27-2021-52.html