Inspection Procedure
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
- Check speaker that does not sound.
PREPARATION:
Disconnect the player connector.
CHECK:
Check the resistance between terminals 1 and 2.
OK:
Resistance:
Except woofer: 2 - 9 Ω
Woofer: 2 - 16 Ω
- NG : Replace the speaker.
- OK : Go to next step.
- Check wire harness.
PREPARATION:
Disconnect the speaker connector.
CHECK:
Check continuity of wire harness.
CONTINUITY SPECIFICATIONSpeaker that does not sound Check wire harness Front LH door speaker w/ LEXUS navigation system
Navigation ECU (N15-2) - FR LH Speaker (D19-1)
Navigation ECU (N15-11) - FR LH Speaker (D19-2)
w/o LEXUS navigation system
Stereo amplifier (S28-2) - FR LH Speaker (D19-1)
Stereo amplifier (S28-9) - FR LH Speaker (D19-2)Front RH door speaker Stereo amplifier (S30-1) - FR RH Speaker (D20-1)
Stereo amplifier (S30-8) - FR RH Speaker (D20-2)Rear LH door speaker Telephone relay (M4-1) - RR LH Speaker (R26-1)
Telephone relay (M4-11) - RR LH Speaker (R26-2)Rear RH door speaker Stereo amplifier (S28-3) - RR RH Speaker (R27-1)
Stereo amplifier (S28-10) - RR RH Speaker (R27-2)Front LH tweeter Stereo amplifier (S30-2) - FR LH tweeter (T18-1)
Stereo amplifier (S30-15) - FR LH tweeter (T18-2)Front RH tweeter Stereo amplifier (S30-1) - FR RH tweeter (T19-1)
Stereo amplifier (S30-14) - FR RH tweeter (T19-2)Rear LH tweeter Telephone relay (M4-1) - RR LH tweeter (T20-1)
Telephone relay (M4-11) - RR LH tweeter (T20-3)Rear RH tweeter Stereo amplifier (S28-3) - RR RH tweeter (T21-1)
Stereo amplifier (S28-10) - RR RH tweeter (T21-3)Woofer Stereo amplifier (S28-5) - Woofer (W5-2)
Stereo amplifier (S28-6) - Woofer (W5-1)
Stereo amplifier (S28-14) - Woofer (W5-4)
Stereo amplifier (S28-15) - Woofer (W5-3)OK:
Continuity
- NG : Replace or repair wire harness (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
- OK : Replace component to which defective speaker is connected (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).