Celica L4-1.8L (1ZZ-FE) (2004)
If circuit is as specified, try replacing the amplifier with a new one. If the circuit is not as specified, inspect the circuits connected to other
parts.
c. Inspect the wire harness side connector of ECM from the back side, as shown in the chart.
If circuit is as specified, try replacing the amplifier with a new one. If the circuit is not as specified, inspect the circuits connected to other
parts.