Lexus ES: Speaker Circuit

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System (for Hv Model) / Speaker Circuit

DESCRIPTION

If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)* or speakers.

*: w/ Manual (SOS) Switch

WIRING DIAGRAM

for 10 Speakers

for 17 Speakers

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
Click here
Before replacing the DCM (telematics transceiver), refer to Registration.
Click here

PROCEDURE

1.	CHECK MODEL

(a) Choose the model to be inspected.

Result	Proceed to
for 10 Speakers	A
for 17 Speakers	B

GO TO STEP 16

2.	CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.

Click here

(b) Perform the operation check above and determine the speaker that is not operating.

Not Operating Speaker	Proceed to
Front No. 2 speaker assembly (w/ Manual (SOS) Switch)	A
Front No. 2 speaker assembly (w/o Manual (SOS) Switch)	B
Front No. 1 speaker assembly	C
Front No. 3 speaker assembly	D
Rear speaker assembly	E
Speaker assembly with bracket	F

HINT:

If sound cannot be heard from any speaker, inspect all of them.

GO TO STEP 6

GO TO STEP 8

GO TO STEP 10

GO TO STEP 12

GO TO STEP 14

3.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the G129 DCM (telematics transceiver) connector.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-13 (FR+) - G129-1 (SPI+)	Always	Below 1 Ω
G11-28 (FR-) - G129-2 (SPI-)	Always	Below 1 Ω
G129-3 (SPO+) - G78-2 (+)	Always	Below 1 Ω
G129-4 (SPO-) - G78-1 (-)	Always	Below 1 Ω
G11-12 (FL+) - G79-2 (+)	Always	Below 1 Ω
G11-27 (FL-) - G79-1 (-)	Always	Below 1 Ω
G11-13 (FR+) or G129-1 (SPI+) - Body ground	Always	10 kΩ or higher
G11-28 (FR-) or G129-2 (SPI-) - Body ground	Always	10 kΩ or higher
G129-3 (SPO+) or G78-2 (+) - Body ground	Always	10 kΩ or higher
G129-4 (SPO-) or G78-1 (-) - Body ground	Always	10 kΩ or higher
G11-12 (FL+) or G79-2 (+) - Body ground	Always	10 kΩ or higher
G11-27 (FL-) or G79-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.	REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly.

Click here

(b) Inspect the front No. 2 speaker assembly.

Click here

OK:

Malfunction disappears.

END

5.	INSPECT DCM (TELEMATICS TRANSCEIVER)

(a) Remove the DCM (telematics transceiver).

Click here

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (SPI+) - 3 (SPO+)	Always	Below 1 Ω
2 (SPI-) - 4 (SPO-)	Always	Below 1 Ω
1 (SPI+) - 2 (SPI-)	Always	10 kΩ or higher
3 (SPO+) - 4 (SPO-)	Always	10 kΩ or higher
1 (SPI+) or 3 (SPO+) - Body ground	Always	10 kΩ or higher
2 (SPI-) or 4 (SPO-) - Body ground	Always	10 kΩ or higher

*a	Component without harness connected (DCM (Telematics Transceiver))

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE DCM (TELEMATICS TRANSCEIVER)

6.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the G78 and G79 front No. 2 speaker assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-13 (FR+) - G78-2 (+)	Always	Below 1 Ω
G11-28 (FR-) - G78-1 (-)	Always	Below 1 Ω
G11-12 (FL+) - G79-2 (+)	Always	Below 1 Ω
G11-27 (FL-) - G79-1 (-)	Always	Below 1 Ω
G11-13 (FR+) or G78-2 (+) - Body ground	Always	10 kΩ or higher
G11-28 (FR-) or G78-1 (-) - Body ground	Always	10 kΩ or higher
G11-12 (FL+) or G79-2 (+) - Body ground	Always	10 kΩ or higher
G11-27 (FL-) or G79-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.	REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly.

Click here

(b) Inspect the front No. 2 speaker assembly.

Click here

OK:

Malfunction disappears.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

8.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the J2 and J19 front No. 1 speaker assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-5 (WFR+) - J2-2 (WF+)	Always	Below 1 Ω
G11-20 (WFR-) - J2-1 (WF-)	Always	Below 1 Ω
G11-4 (WFL+) - J19-2 (WF+)	Always	Below 1 Ω
G11-19 (WFL-) - J19-1 (WF-)	Always	Below 1 Ω
G11-5 (WFR+) or J2-2 (WF+) - Body ground	Always	10 kΩ or higher
G11-20 (WFR-) or J2-1 (WF-) - Body ground	Always	10 kΩ or higher
G11-4 (WFL+) or J19-2 (WF+) - Body ground	Always	10 kΩ or higher
G11-19 (WFL-) or J19-1 (WF-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.	INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly.

Click here

(b) Inspect the front No. 1 speaker assembly.

Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

10.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the H6 front No. 3 speaker assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-7 (CTR+) - H6-2 (+)	Always	Below 1 Ω
G11-22 (CTR-) - H6-1 (-)	Always	Below 1 Ω
G11-7 (CTR+) or H6-2 (+) - Body ground	Always	10 kΩ or higher
G11-22 (CTR-) or H6-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.	INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

(a) Remove the front No. 3 speaker assembly.

Click here

(b) Inspect the front No. 3 speaker assembly.

Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY

12.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the M1 and L6 rear speaker assembly connectors. (Door Trim Wood Panel Type, w/o Ambient Light)

(d) Disconnect the M1 and M4 rear speaker assembly connectors. (w/ Ambient Light)

(e) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-9 (RR+) - M1-2 (+)	Always	Below 1 Ω
G11-24 (RR-) - M1-1 (-)	Always	Below 1 Ω
G11-8 (RL+) - L6-2 (+)*1	Always	Below 1 Ω
G11-23 (RL-) - L6-2 (+)*1	Always	Below 1 Ω
G11-8 (RL+) - M4-2 (+)2, 3	Always	Below 1 Ω
G11-23 (RL-) - M4-1 (-)2, 3	Always	Below 1 Ω
G11-9 (RR+) or M1-2 (+) - Body ground	Always	10 kΩ or higher
G11-24 (RR-) or M1-1 (-) - Body ground	Always	10 kΩ or higher
G11-8 (RL+) or L6-2 (+) - Body ground*1	Always	10 kΩ or higher
G11-23 (RL-) or L6-1 (-) - Body ground*1	Always	10 kΩ or higher
G11-8 (RL+) or M4-2 (+) - Body ground2, 3	Always	10 kΩ or higher
G11-23 (RL-) or M4-1 (-) - Body ground2, 3	Always	10 kΩ or higher

*1: Door Trim Wood Panel Type, w/o Ambient Light
*2: Except Door Trim Wood Panel Type
*3: w/ Ambient Light

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.	INSPECT REAR SPEAKER ASSEMBLY

(a) Remove the rear speaker assembly.

Click here

(b) Inspect the rear speaker assembly.

Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE REAR SPEAKER ASSEMBLY

14.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - SPEAKER ASSEMBLY WITH BRACKET)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the N75 speaker assembly with bracket connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-6 (WF1+) - N75-2 (WF1+)	Always	Below 1 Ω
G11-21 (WF1-) - N75-1 (WF1-)	Always	Below 1 Ω
G11-6 (WF1+) or N75-2 (WF1+) - Body ground	Always	10 kΩ or higher
G11-21 (WF1-) or N75-1 (WF1-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

15.	INSPECT SPEAKER ASSEMBLY WITH BRACKET

(a) Remove the speaker assembly with bracket.

Click here

(b) Inspect the speaker assembly with bracket.

Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE SPEAKER ASSEMBLY WITH BRACKET

16.	CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.

Click here

(b) Perform the operation check above and determine the speaker that is not operating.

Not Operating Speaker	Proceed to
Front No. 2 speaker assembly (w/ Manual (SOS) Switch)	A
Front No. 2 speaker assembly (w/o Manual (SOS) Switch)	B
Front No. 1 speaker assembly	C
Front No. 3 speaker assembly	D
Front No. 4 speaker assembly	E
Rear speaker assembly	F
Speaker assembly with bracket	G

HINT:

If sound cannot be heard from any speaker, inspect all of them.

GO TO STEP 20

GO TO STEP 22

GO TO STEP 24

GO TO STEP 26

GO TO STEP 28

GO TO STEP 30

17.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the G129 DCM (telematics transceiver) connector.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-13 (FR+) - G129-1 (SPI+)	Always	Below 1 Ω
G11-28 (FR-) - G129-2 (SPI-)	Always	Below 1 Ω
G129-3 (SPO+) - G78-2 (+)	Always	Below 1 Ω
G129-4 (SPO-) - G78-1 (-)	Always	Below 1 Ω
G11-12 (FL+) - G79-2 (+)	Always	Below 1 Ω
G11-27 (FL-) - G79-1 (-)	Always	Below 1 Ω
G11-13 (FR+) or G129-1 (SPI+) - Body ground	Always	10 kΩ or higher
G11-28 (FR-) or G129-2 (SPI-) - Body ground	Always	10 kΩ or higher
G129-3 (SPO+) or G78-2 (+) - Body ground	Always	10 kΩ or higher
G129-4 (SPO-) or G78-1 (-) - Body ground	Always	10 kΩ or higher
G11-12 (FL+) or G79-2 (+) - Body ground	Always	10 kΩ or higher
G11-27 (FL-) or G79-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

18.	REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly.

Click here

(b) Inspect the front No. 2 speaker assembly.

Click here

OK:

Malfunction disappears.

END

19.	INSPECT DCM (TELEMATICS TRANSCEIVER)

(a) Remove the DCM (telematics transceiver).

Click here

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (SPI+) - 3 (SPO+)	Always	Below 1 Ω
2 (SPI-) - 4 (SPO-)	Always	Below 1 Ω
1 (SPI+) - 2 (SPI-)	Always	10 kΩ or higher
3 (SPO+) - 4 (SPO-)	Always	10 kΩ or higher
1 (SPI+) or 3 (SPO+) - Body ground	Always	10 kΩ or higher
2 (SPI-) or 4 (SPO-) - Body ground	Always	10 kΩ or higher

*a	Component without harness connected (DCM (Telematics Transceiver))

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE TELEMATICS TRANSCEIVER

20.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the G78 and G79 front No. 2 speaker assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-13 (FR+) - G78-2 (+)	Always	Below 1 Ω
G11-28 (FR-) - G78-1 (-)	Always	Below 1 Ω
G11-12 (FL+) - G79-2 (+)	Always	Below 1 Ω
G11-27 (FL-) - G79-1 (-)	Always	Below 1 Ω
G11-13 (FR+) or G78-2 (+) - Body ground	Always	10 kΩ or higher
G11-28 (FR-) or G78-1 (-) - Body ground	Always	10 kΩ or higher
G11-12 (FL+) or G79-2 (+) - Body ground	Always	10 kΩ or higher
G11-27 (FL-) or G79-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

21.	REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly.

Click here

(b) Inspect the front No. 2 speaker assembly.

Click here

OK:

Malfunction disappears.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

22.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the J2 and J19 front No. 1 speaker assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-5 (WFR+) - J2-2 (WF+)	Always	Below 1 Ω
G11-20 (WFR-) - J2-1 (WF-)	Always	Below 1 Ω
G11-4 (WFL+) - J19-2 (WF+)	Always	Below 1 Ω
G11-19 (WFL-) - J19-1 (WF-)	Always	Below 1 Ω
G11-5 (WFR+) or J2-2 (WF+) - Body ground	Always	10 kΩ or higher
G11-20 (WFR-) or J2-1 (WF-) - Body ground	Always	10 kΩ or higher
G11-4 (WFL+) or J19-2 (WF+) - Body ground	Always	10 kΩ or higher
G11-19 (WFL-) or J19-1 (WF-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

23.	INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly.

Click here

(b) Inspect the front No. 1 speaker assembly.

Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

24.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the H6 front No. 3 speaker assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-7 (CTR+) - H6-2 (+)	Always	Below 1 Ω
G11-22 (CTR-) - H6-1 (-)	Always	Below 1 Ω
G11-7 (CTR+) or H6-2 (+) - Body ground	Always	10 kΩ or higher
G11-22 (CTR-) or H6-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

25.	REPLACE FRONT NO. 3 SPEAKER ASSEMBLY

(a) Remove the front No. 3 speaker assembly.

Click here

(b) Inspect the front No. 3 speaker assembly.

Click here

OK:

Malfunction disappears.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

26.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 4 SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the J1 and J18 front No. 4 speaker assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-11 (TWR+) - J1-2 (+)	Always	Below 1 Ω
G11-26 (TWR-) - J1-1 (-)	Always	Below 1 Ω
G11-10 (TWL+) - J18-2 (+)	Always	Below 1 Ω
G11-25 (TWL-) - J18-1 (-)	Always	Below 1 Ω
G11-11 (TWR+) or J1-2 (+) - Body ground	Always	10 kΩ or higher
G11-26 (TWR-) or J1-1 (-) - Body ground	Always	10 kΩ or higher
G11-10 (TWL+) or J18-2 (+) - Body ground	Always	10 kΩ or higher
G11-25 (TWL-) or J18-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

27.	REPLACE FRONT NO. 4 SPEAKER ASSEMBLY

(a) Remove the front No. 4 speaker assembly.

Click here

(b) Inspect the front No. 4 speaker assembly.

Click here

OK:

Malfunction disappears.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

28.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the M1 and M4 rear speaker assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-9 (RR+) - M1-2 (+)	Always	Below 1 Ω
G11-24 (RR-) - M1-1 (-)	Always	Below 1 Ω
G11-8 (RL+) - M4-2 (+)	Always	Below 1 Ω
G11-23 (RL-) - M4-1 (-)	Always	Below 1 Ω
G11-9 (RR+) or M1-2 (+) - Body ground	Always	10 kΩ or higher
G11-24 (RR-) or M1-1 (-) - Body ground	Always	10 kΩ or higher
G11-8 (RL+) or M4-2 (+) - Body ground	Always	10 kΩ or higher
G11-23 (RL-) or M4-1 (-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

29.	REPLACE REAR SPEAKER ASSEMBLY

(a) Remove the rear speaker assembly.

Click here

(b) Inspect the rear speaker assembly.

Click here

OK:

Malfunction disappears.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

30.	CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - SPEAKER ASSEMBLY WITH BRACKET)

(a) Disconnect the G11 stereo component amplifier assembly connector.

(b) Disconnect the N75 speaker assembly with bracket connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G11-6 (WF1+) - N75-2 (WF1+)	Always	Below 1 Ω
G11-21 (WF1-) - N75-1 (WF1-)	Always	Below 1 Ω
G11-6 (WF1+) or N75-2 (WF1+) - Body ground	Always	10 kΩ or higher
G11-21 (WF1-) or N75-1 (WF1-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

31.	INSPECT SPEAKER ASSEMBLY WITH BRACKET

(a) Remove the speaker assembly with bracket.

Click here

(b) Inspect the speaker assembly with bracket.

Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE SPEAKER ASSEMBLY WITH BRACKET

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