AV38
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
Speaker Circuit
DESCRIPTION
Sound signals that have been amplified by the stereo component amplifier are sent to the speakers from the radio receiver through this circuit. If there is a short in this circuit, the sound cannot be heard from the speakers even though there is no malfunction in the speakers.
WIRING DIAGRAM
Radio Receiver
FL+ Front No. 1 Speaker (LH) FLFR+ Front No. 1 Speaker (RH) FR-
Front No. 2 Speaker (LH)
AV
Front No. 2 Speaker (RH)
E130769E01
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
AV39
Radio Receiver
RL+ Rear Speaker (LH) RLRR+ Rear Speaker (RH) RRCondenser LO+ Roof Speaker (LH) LORO+ Roof Speaker (RH) ROLIRI+ RILI+
*1 Woofer Speaker*1
*1
*1
*1
AV
*1: w/ Woofer Speaker
E130770E01
INSPECTION PROCEDURE
1
Result
CHECK SPEAKER (a) Check whether sound is emitted from each speaker.
Result Proceed to A B C D E
Front No. 1 speakers have problems Front No. 2 speakers have problems Rear speakers have problems Woofer speaker has problems (w/ woofer speaker) Roof speakers have problems
AV40
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
B C D E A
Go to step 4 Go to step 6 Go to step 8 Go to step 10
INSPECT FRONT NO. 1 SPEAKERS (a) Check the left and right front No. 1 speakers (See page AV-58). OK: Front No. 1 speakers are normal. NG REPLACE FRONT NO. 1 SPEAKER
OK
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 1 SPEAKER) (a) Disconnect the E41 receiver connector. (b) Disconnect the G4 and H4 front No. 1 speaker connectors. (c) Measure the resistance. Standard resistance
Tester Connection Specified Condition Below 1 Below 1 10 k or higher 10 k or higher Below 1 Below 1 10 k or higher 10 k or higher E41-2 (FL+) - H4-1 E41-6 (FL-) - H4-2
AV
Wire Harness Side: Radio Receiver Connector E41 FR+ FRFLFront View FL+
E41-2 (FL+) or H4-1 - Body ground E41-6 (FL-) or H4-2 - Body ground E41-1 (FR+) - G4-1 E41-5 (FR-) - G4-2 E41-1 (FR+) or G4-1 - Body ground E41-5 (FR-) or G4-2 - Body ground
Front No. 1 Speaker Connector H4 *1
(d) Reconnect the receiver connector. (e) Reconnect the front No. 1 speaker connectors. NG REPAIR OR REPLACE HARNESS OR CONNECTOR
G4 *2 *1: LH *2: RH Front View
I044961E09
OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
AV41
INSPECT FRONT NO. 2 SPEAKERS (a) Check the left and right front No. 2 speakers (See page AV-61). OK: Front No. 2 speakers are normal. NG REPLACE FRONT NO. 2 SPEAKER
OK
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 2 SPEAKER) (a) Disconnect the E41 receiver connector. (b) Disconnect the F3 and F4 front No. 2 speaker connectors. (c) Measure the resistance. Standard resistance
Tester Connection E41-2 (FL+) - F4-4 E41-6 (FL-) - F4-3 E41-2 (FL+) or F4-4 - Body ground Specified Condition Below 1 Below 1 10 k or higher 10 k or higher Below 1 Below 1 10 k or higher 10 k or higher
Wire Harness Side: Radio Receiver Connector E41 FR+ FRFLFront View FL+
E41-6 (FL-) or F4-3 - Body ground E41-1 (FR+) - F3-4 E41-5 (FR-) - F3-3 E41-1 (FR+) or F3-4 - Body ground E41-5 (FR-) or F3-3 - Body ground
Front No. 2 Speaker Connector F4 F3 *1: LH *2: RH *1 *2
AV
(d) Reconnect the receiver connector. (e) Reconnect the front No. 2 speaker connectors.
Front View
E130777E01
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT REAR SPEAKERS (a) Check the left and right rear speakers (See page AV-69). OK: Rear speakers are normal. NG REPLACE REAR SPEAKER
OK
AV42
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - REAR SPEAKER) (a) Disconnect the E42 receiver connector. (b) Disconnect the L9 and L18 rear speaker connectors. (c) Measure the resistance. Standard resistance
RL+
1 3 4 5 2 6
Tester Connection E42-2 (RL+) - L9-1 E42-6 (RL-) - L9-2 E42-2 (RL+) or L9-1 - Body ground Specified Condition Below 1 Below 1 10 k or higher 10 k or higher Below 1 Below 1 10 k or higher 10 k or higher
Wire Harness Side: RR+ E42 Radio Receiver Connector
RRFront View Rear Speaker Connector L9 *1 L18 *2 *1: LH *2: RH Front View
RL-
E42-6 (RL-) or L9-2 - Body ground E42-1 (RR+) - L18-1 E42-3 (RR-) - L18-2 E42-1 (RR+) or L18-1 - Body ground E42-3 (RR-) or L18-2 - Body ground
(d) Reconnect the receiver connector. (e) Reconnect the rear speaker connectors. NG REPAIR OR REPLACE HARNESS OR CONNECTOR
E130778E01
OK
AV
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT WOOFER SPEAKER (a) Check the woofer speaker. OK: Woofer speaker is normal. NG REPLACE WOOFER SPEAKER
OK
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
AV43
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - WOOFER SPEAKER) (a) Disconnect the E42 receiver connector. (b) Disconnect the K4 woofer speaker connector. (c) Measure the resistance. Standard resistance
RL+
1 3 4 5 2 6
Tester Connection E42-2 (RL+) - K4-2 (L+) E42-6 (RL-) - K4-6 (L-) E42-2 (RL+) orK4-2 (L+) - Body ground Specified Condition Below 1 Below 1 10 k or higher 10 k or higher Below 1 Below 1 10 k or higher 10 k or higher
Wire Harness Side: RR+ E42 Radio Receiver Connector
RRFront View Woofer Speaker Connector L+ K4 LFront View
RL-
E42-6 (RL-) or K4-6 (L-) - Body ground E42-1 (RR+) - K4-1 (R+) E42-3 (RR-) - K4-5 (R-)
R+
E42-1 (RR+) or K4-1 (R+) - Body ground E42-3 (RR-) or K4-5 (R-) - Body ground
R-
(d) Reconnect the receiver connector. (e) Reconnect the woofer speaker connector. NG REPAIR OR REPLACE HARNESS OR CONNECTOR
E130779E01
OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
AV
10
INSPECT ROOF SPEAKERS (a) Check the left and right roof speakers (See page AV-82). OK: Roof speakers are normal. NG REPLACE ROOF SPEAKER
OK
AV44
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
11
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - CONDENSER) (a) Disconnect the E42 receiver connector. (b) Disconnect the E27 condenser connector. (c) Measure the resistance. Standard resistance
RL+
1 3 4 5 2 6
Tester Connection E42-2 (RL+) - E27-2 (LI+) E42-6 (RL-) - E27-1 (LI-) E42-2 (RL+) or E27-2 (LI+) - Body ground Specified Condition Below 1 Below 1 10 k or higher 10 k or higher Below 1 Below 1 10 k or higher 10 k or higher
Wire Harness Side: RR+ E42 Radio Receiver Connector
RR-
Front View
RL-
E42-6 (RL-) or E27-1 (LI-) - Body ground E42-1 (RR+) - E27-4 (RI+)
Condenser Connector LI+ LI1 2 6 3 7 4 8
E42-3 (RR-) - E27-3 (RI-)
RIRI+
E42-1 (RR+) or E27-4 (RI+) - Body ground E42-3 (RR-) or E27-3 (RI-) - Body ground
E27
Front View
E130789E01
(d) Reconnect the receiver connector. (e) Reconnect the condenser connector. NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
AV
12
CHECK HARNESS AND CONNECTOR (CONDENSER - ROOF SPEAKER) (a) Disconnect the E42 receiver connector. (b) Disconnect the E27 condenser connector. (c) Measure the resistance. Standard resistance
Tester Connection E27-2 (LO+) - R4-1 Specified Condition Below 1 Below 1 10 k or higher 10 k or higher Below 1 Below 1 10 k or higher 10 k or higher
Wire Harness Side: Condenser Connector
E27 LOLO+
1 5
2 6
3 7
4 8
E27-5 (LO-) - R4-2 E27-2 (LO+) or R4-1 - Body ground
RO+ Front View RO-
E27-5 (LO-) or R4-2 - Body ground E27-8 (RO+) - R5-1 E27-7 (RO-) - R5-2
Roof Speaker Connector R4 *1 R5 *1: LH *2: RH *2
E27-8 (RO+) or R5-1 - Body ground E27-7 (RO-) or R5-2 - Body ground
(d) Reconnect the receiver connector. (e) Reconnect the condenser connector. NG
Front View
E130790E02
REPAIR OR REPLACE HARNESS OR CONNECTOR
AUDIO / VISUAL AUDIO AND VISUAL SYSTEM
AV45
OK
13
REPLACE CONDENSER (a) Temporarily replace the condenser with a new or normally functioning one. (b) Check that the sound is normal. OK: Sound is normal. NG END
OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
AV
