Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2019BLAZER PREMIER, FWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASPARKING ASSISTANCE SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B0968CIRCUIT/SYSTEM TESTING
2019 Chevrolet Blazer Premier, FWD
Circuit/System Testing
2019 Chevrolet Blazer Premier, FWDSECTION Circuit/System Testing
- Ignition/Vehicle & All vehicle systems - Off
- Disconnect the electrical connector: S126 Drive Mode Select Switch
- Test for greater than 3 V between the test points: Control circuit terminal 8 & Ground
- If less than 3 V
Refer to: Interior Backlighting Malfunction
- Go to next step: If greater than 3 V
- If less than 3 V
- Connect a test lamp between the test points: Control circuit terminal 17 & B+
- Perform the scan tool control function: Parking Assist Switch LED - Active & Inactive
Verify the test lamp turns On and Off.
- If the test lamp is always Off
- Ignition/Vehicle - Off & Remove - Test lamp
- Disconnect the electrical connector: K182 Parking Assist Control Module
- Ignition/Vehicle - On
- Test for less than 1 V between the test points: Control circuit terminal 17 @ Component harness & Ground
- If 1 V or greater - Repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
- Test for less than 2 ohms between the test points: Control circuit terminal 17 @ Component harness & Control circuit terminal 3 @ Control module harness
- If 2 ohms or greater - Repair the open/high resistance in the circuit.
- If less than 2 ohms - Replace the component: K182 Parking Assist Control Module
- If the test lamp is always On
- Ignition/Vehicle - Off & Remove - Jumper wire(s)
- Disconnect the electrical connector: K182 Parking Assist Control Module
- Test for infinite resistance between the test points: Control circuit terminal 17 @ Component harness & Ground
- If less than infinite resistance - Repair the short to ground on the circuit.
- If infinite resistance - Replace the component: K182 Parking Assist Control Module
- Go to next step: If the test lamp turns On and Off
- Test or replace the component: S126 Drive Mode Select Switch
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.