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 MANUALSCHEVROLET2020CAMARO SS, 2D COUPE, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR, ENTERTAINMENT, AND NAVIGATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1025-B1135 (UQA)CIRCUIT/SYSTEM TESTING

2020 Chevrolet Camaro SS, 2D Coupe, Standard Trans

Circuit/System Testing

2020 Chevrolet Camaro SS, 2D Coupe, Standard TransSECTION Circuit/System Testing

Ignition OFF, disconnect the harness connector at the appropriate P19 Speaker. Ignition ON, infotainment system ON, mute OFF.
Test for 5 - 7 V between the appropriate signal circuit terminals listed below and ground.
- Door, Tweeter, Center I/P, Rear Trim Panel, and Rear Window Shelf speakers audio (-) circuit terminal 1
- Door, Tweeter, Center I/P, Rear Trim Panel, and Rear Window Shelf speakers audio (+) circuit terminal 2
- If less than 5 V
1. Ignition OFF, disconnect the X1 and X2 harness connectors at the T3 Audio Amplifier.
2. Test for infinite resistance between the signal circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - Go to next step: If infinite resistance
3. Test for less than 2 Ω in the signal circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the T3 Audio Amplifier.
- If greater than 7 V
1. Ignition OFF, disconnect the X1 and X2 harness connectors at the T3 Audio Amplifier. Ignition ON.
2. Test for less than 1 V between the signal circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the T3 Audio Amplifier.
- Go to next step: If between 5 - 7 V
Test or replace the P19 Speaker.

RENDER: 1.0x

NO RELATED

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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.