Circuit/System Verification

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Cadillac Escalade ESV, and 2018 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: This DTC is always set in combination with other DTCs.

Verify DTC P175E is not set.
- If any of the DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no DTC is set
Verify the scan tool parameter:Shift Limiting Active Reason = Transmission Control System - Shift Limiting Active
- If not the specified state
1. Verify there are no DTCs/symptoms related to the following system/component, if equipped:
- B107 Accelerator Pedal Position Sensor
- B21A Brake Fluid Pressure Sensor
- B22 Brake Pedal Position Sensor
- B303 Transmission Range Sensor
- B5LF Wheel Speed Sensor - Left Front
- B5LR Wheel Speed Sensor - Left Rear
- B5RF Wheel Speed Sensor - Right Front
- B5RR Wheel Speed Sensor - Right Rear
- If a DTC or symptom exists
  Repair or replace as necessary.
- Go to next step: If no DTC or symptom exists
Verify the following conditions do not exist:
- Engine Torque = Low or Unstable
- Engine Speed = Low or Unstable
- If a condition exists
  Refer to Symptoms - Engine Controls
- Go to next step: If no condition exists
All OK.