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, and center I/P speakers audio (-) circuit terminal 1
- door, tweeter, and Center I/P speakers audio (+) circuit terminal 2
- subwoofer audio (-) circuit terminal A
- subwoofer audio (+) circuit terminal B
- rear cargo door audio (-) circuit terminal A (UQS ONLY)
- rear cargo door audio (+) circuit terminal B (UQS ONLY)
- 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.
  - 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.
- If between 5-7 V
Test or replace the P19 speaker.