Audio System: Inspection
- INSPECT POWER AMPLIFIER CIRCUIT
Connect the connector from power amplifier and inspect the connector on the wire harness side.
TESTER CONNECTION AND CONDITIONTester connection Condition Specified condition A1 - Ground (FR+) Audio sounding 5 - 7V A2 - Ground (FL+) Audio sounding 5 - 7 V A3 - Ground (RR+) Audio sounding 5 - 7V A4 - Ground (RI+) Audio sounding 5 - 7V A5 - Ground (WFI+) Audio sounding 5 - 7 V A7 - Ground (+B) Constant Battery positive voltage A8 - Ground (FR-) Audio sounding 5 - 7 V A9 - Ground (FL-) Audio sounding 5 - 7 V A10 - Ground (RR-) Audio sounding 5 - 7V A11 - Ground (RL-) Audio sounding 5 - 7 V A13 - Ground (GND) Constant Continuity A14 - Ground (WFL-) Audio sounding 5 - 7V B1 - Ground (AMP+) Radio power switch ON Battery positive voltage B2 - Ground (ACC) Ignition switch ON Battery positive voltage B4 - Ground (BEEP) Audio sounding - B5 - Ground (FLIN) Audio sounding 5 - 7 V B6 - Ground (FRIN) Audio sounding 5 - 7V B11 - Ground (SGND) Constant Continuity B12 - Ground (MUTE) Audio sounding 1 V or below B13 - Ground (RLIN) Audio sounding 5 - 7V B14 - Ground (RRIN) Audio sounding 5 - 7 V If the circuit is not as specified, inspect the circuits connected to other parts.
- INSPECT RADIO RECEIVER ASSEMBLY CIRCUIT
Connect the connectors from the radio receiver assembly, and inspect the connector on the wire harness side.
TESTER CONNECTION AND CONDITIONTester connection Condition Specified condition A1 - Ground (FR+) Audio sounding 5 - 7V A2 - Ground (FL+) Audio sounding 5 - 7 V A3 - Ground (ACC, +B) Ignition switch ACC Battery positive voltage A4 - Ground (BU +B) Constant Battery positive voltage A5 - Ground (FR-) Audio sounding 5 - 7 V A6 - Ground (FL-) Audio sounding 5 - 7V A7 - Ground (GND) Constant Continuity A8 - Ground (ANT +B) Radio power switch ON Battery positive voltage A10 - Ground (ILL+) Headlight dimmer switch ON Battery positive voltage B1 - Ground (RR+) Audio sounding 5 - 7 V B2 - Ground (RL+) Audio sounding 5 - 7V B3 - Ground (RR-) Audio sounding 5 - 7 V B4 - Ground (RL-) Audio sounding 5 - 7 V C1 - Ground (+B) Constant Battery positive voltage C2 - Ground (ILL+) Headlight dimmer switch ON Battery positive voltage C3 - Ground (AMP+) Radio switch ON Battery positive voltage C7 - Ground (MUTE) Audio sounding 1V or below C8 - Ground (FR+) Audio sounding 5 - 7 V C9 - Ground (FL+) Audio sounding 5 - 7V C10 - Ground (SLD) Constant Continuity C11 - Ground (ACC) Ignition switch ON Battery positive voltage C13 - Ground (ANT+B) Radio power switch ON 10 - 14V C16 - Ground (S-GND) Constant Continuity C17 - Ground (BEEP) Audio sounding - C18 - Ground (RR) Audio sounding 5 - 7V C19 - Ground (RL) Audio sounding 5 - 7 V C20 - Ground (GND) Constant Continuity If the circuit is not as specified, inspect the circuits connected to other parts.
- INSPECT GLASS IMPRINTED ANTENNA
Use same procedure as in "INSPECTION " to inspect antenna .
- REPAIR GLASS IMPRINTED ANTENNA
Use same procedure as in "INSPECTION " to repair antenna .