Toyota Venza manuals

Toyota Venza: Speaker Circuit

DESCRIPTION

for 6 Speakers:

If there is a short in a speaker circuit, the navigation receiver 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 navigation receiver assembly or speakers.

for 13 Speakers:

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 or speakers.

WIRING DIAGRAM

1. for 6 Speakers


2. for 13 Speakers



PROCEDURE

1.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Proceed to

for 6 Speakers

A

for 13 Speakers

B


B

GO TO STEP 9


A

2.

CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen.

Refer to Check Speaker in Operation Check (See page ).



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

Not Operating Speaker

Proceed to

Front No. 1 speaker assembly or front No. 2 speaker assembly

A

Rear speaker assembly

B

HINT:

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


B

GO TO STEP 7


A

3.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)

(a) Disconnect the E38 navigation receiver assembly connector.

(b) Disconnect the E28 and E29 front No. 2 speaker assembly connectors.

(c) Disconnect the H1 and I1 front No. 1 speaker assembly connectors.

(d) Measure the resistance between the navigation receiver assembly and each of the front No. 2 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E38-1 (FR+) - E28-2 (TWR+)

Always

Below 1 Ω

E38-5 (FR-) - E28-4 (TWR-)

Always

Below 1 Ω

E38-2 (FL+) - E29-2 (TWL+)

Always

Below 1 Ω

E38-6 (FL-) - E29-4 (TWL-)

Always

Below 1 Ω

(e) Measure the resistance between each of the front No. 2 speaker assemblies and the front No. 1 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E28-1 (+) - H1-1

Always

Below 1 Ω

E28-3 (-) - H1-2

Always

Below 1 Ω

E29-1 (+) - I1-1

Always

Below 1 Ω

E29-3 (-) - I1-2

Always

Below 1 Ω

(f) Measure the resistance between the navigation receiver assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E38-1 (FR+) - Body ground

Always

10 kΩ or higher

E38-5 (FR-) - Body ground

Always

10 kΩ or higher

E38-2 (FL+) - Body ground

Always

10 kΩ or higher

E38-6 (FL-) - Body ground

Always

10 kΩ or higher

(g) Measure the resistance between each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E28-1 (+) - Body ground

Always

10 kΩ or higher

E28-3 (-) - Body ground

Always

10 kΩ or higher

E29-1 (+) - Body ground

Always

10 kΩ or higher

E29-3 (-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

4.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

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


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

3.2 to 4.8 Ω

Text in Illustration

*a

Component without harness connected

(Front No. 1 Speaker Assembly)



NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY


OK

5.

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

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


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

Standard Resistance:

for RH:

Tester Connection

Condition

Specified Condition

4 (TWR-) - 2 (TWR+)

Always

10 kΩ or higher

3 (-) - 4 (TWR-)

Always

Below 1 Ω

1 (+) - 2 (TWR+)

Always

Below 1 Ω

for LH:

Tester Connection

Condition

Specified Condition

4 (TWL-) - 2 (TWL+)

Always

10 kΩ or higher

3 (-) - 4 (TWL-)

Always

Below 1 Ω

1 (+) - 2 (TWL+)

Always

Below 1 Ω

Text in Illustration

*A

for RH

*B

for LH

*a

Component without harness connected

(Front No. 2 Speaker Assembly)



NG

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY


OK

6.

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

(a) Check that the malfunction disappears when a known good speaker is installed (See page ).


OK:

Malfunction disappears.

HINT:

  • Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
  • When there is a possibility that either the right or left front No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.
  • Perform the above inspection on both the LH and RH side.

OK

END


NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

7.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)

(a) Disconnect the E39 navigation receiver assembly connector.

(b) Disconnect the J4 and K4 rear speaker assembly connectors.

(c) Measure the resistance between the navigation receiver assembly and each of the rear speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E39-1 (RR+) - J4-1

Always

Below 1 Ω

E39-3 (RR-) - J4-2

Always

Below 1 Ω

E39-2 (RL+) - K4-1

Always

Below 1 Ω

E39-6 (RL-) - K4-2

Always

Below 1 Ω

(d) Measure the resistance between the navigation receiver assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E39-1 (RR+) - Body ground

Always

10 kΩ or higher

E39-3 (RR-) - Body ground

Always

10 kΩ or higher

E39-2 (RL+) - Body ground

Always

10 kΩ or higher

E39-6 (RL-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

8.

INSPECT REAR SPEAKER ASSEMBLY

(a) Remove the rear speaker assembly (See page ).


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

3.2 to 4.8 Ω

Text in Illustration

*a

Component without harness connected

(Rear Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE REAR SPEAKER ASSEMBLY

9.

CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen.

Refer to Check Speaker in Operation Check (See page ).



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

Not Operating Speaker

Proceed to

Front No. 3 speaker assembly or front No. 2 speaker assembly

A

Front No. 1 speaker assembly

B

Front No. 4 speaker assembly

C

Rear speaker assembly, rear No. 2 speaker assembly or rear No. 3 speaker assembly

D

HINT:

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


B

GO TO STEP 14


C

GO TO STEP 16


D

GO TO STEP 18


A

10.

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

(a) Disconnect the E15 stereo component amplifier assembly connector.

(b) Disconnect the E25 and E26 front No. 2 speaker assembly connectors.

(c) Disconnect the E23 and E24 front No. 3 speaker assembly connectors.

(d) Measure the resistance between the stereo component amplifier assembly and each of the front No. 2 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E15-10 (FR+) - E25-1 (TWR+)

Always

Below 1 Ω

E15-9 (FR-) - E25-2 (TWR-)

Always

Below 1 Ω

E15-3 (FL+) - E26-1 (TWL+)

Always

Below 1 Ω

E15-8 (FL-) - E26-2 (TWL-)

Always

Below 1 Ω

(e) Measure the resistance between each of the front No. 2 speaker assemblies and the front No. 3 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E25-3 (+) - E23-3

Always

Below 1 Ω

E25-4 (-) - E23-2

Always

Below 1 Ω

E26-3 (+) - E24-3

Always

Below 1 Ω

E26-4 (-) - E24-2

Always

Below 1 Ω

(f) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E15-10 (FR+) - Body ground

Always

10 kΩ or higher

E15-9 (FR-) - Body ground

Always

10 kΩ or higher

E15-3 (FL+) - Body ground

Always

10 kΩ or higher

E15-8 (FL-) - Body ground

Always

10 kΩ or higher

(g) Measure the resistance between each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E25-3 (+) - Body ground

Always

10 kΩ or higher

E25-4 (-) - Body ground

Always

10 kΩ or higher

E26-3 (+) - Body ground

Always

10 kΩ or higher

E26-4 (-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

11.

INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

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


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

2 - 3

Always

10 kΩ or higher

Text in Illustration

*a

Component without harness connected

(Front No. 3 Speaker Assembly)



NG

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY


OK

12.

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY

(a) Check that the malfunction disappears when a known good speaker is installed (See page ).


OK:

Malfunction disappears.

HINT:

  • Connect all the connectors to the front No. 3 speaker assemblies that were disconnected.
  • When there is a possibility that either the right or left front No. 3 speaker assembly is defective, inspect by interchanging the right one with the left one.
  • Perform the above inspection on both the LH and RH side.

OK

END


NG

13.

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

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


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

Standard Resistance:

for RH:

Tester Connection

Condition

Specified Condition

1 (TWR+) - 2 (TWR-)

Always

1.5 to 2.5 Ω

1 (TWR+) - 3 (+)

Always

Below 1 Ω

2 (TWR-) - 4 (-)

Always

Below 1 Ω

for LH:

Tester Connection

Condition

Specified Condition

1 (TWL+) - 2 (TWL-)

Always

1.5 to 2.5 Ω

1 (TWL+) - 3 (+)

Always

Below 1 Ω

2 (TWL-) - 4 (-)

Always

Below 1 Ω

Text in Illustration

*A

for RH

*B

for LH

*a

Component without harness connected

(Front No. 2 Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

14.

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

(a) Disconnect the E12 stereo component amplifier assembly connector.

(b) Disconnect the H1 and I1 front No. 1 speaker assembly connectors.

(c) Measure the resistance between the stereo component amplifier assembly and each of the front No. 1 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-2 (WFR+) - H1-1

Always

Below 1 Ω

E12-6 (WFR-) - H1-2

Always

Below 1 Ω

E12-1 (WFL+) - I1-1

Always

Below 1 Ω

E12-5 (WFL-) - I1-2

Always

Below 1 Ω

(d) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-2 (WFR+) - Body ground

Always

10 kΩ or higher

E12-6 (WFR-) - Body ground

Always

10 kΩ or higher

E12-1 (WFL+) - Body ground

Always

10 kΩ or higher

E12-5 (WFL-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

15.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

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


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

1.65 to 2.15 Ω

Text in Illustration

*a

Component without harness connected

(Front No. 1 Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

16.

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

(a) Disconnect the E12 stereo component amplifier assembly connector.

(b) Disconnect the E27 front No. 4 speaker assembly connector.

(c) Measure the resistance between the stereo component amplifier assembly and the front No. 4 speaker assembly to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-3 (CTR+) - E27-1

Always

Below 1 Ω

E12-9 (CTR-) - E27-2

Always

Below 1 Ω

(d) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-3 (CTR+) - Body ground

Always

10 kΩ or higher

E12-9 (CTR-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

17.

INSPECT FRONT NO. 4 SPEAKER ASSEMBLY

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


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

1.5 to 2.5 Ω

Text in Illustration

*a

Component without harness connected

(Front No. 4 Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE FRONT NO. 4 SPEAKER ASSEMBLY

18.

CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen.

Refer to Check Speaker in Operation Check (See page ).



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

Not Operating Speaker

Proceed to

Rear speaker assembly

A

Rear No. 2 speaker assembly

B

Rear No. 3 speaker assembly

C

HINT:

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


B

GO TO STEP 21


C

GO TO STEP 23


A

19.

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

(a) Disconnect the E12 and E15 stereo component amplifier assembly connectors.

(b) Disconnect the J4 and K4 rear speaker assembly connectors.

(c) Measure the resistance between the stereo component amplifier assembly and each of the rear speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-8 (RR+) - J4-1

Always

Below 1 Ω

E12-7 (RR-) - J4-2

Always

Below 1 Ω

E15-4 (RL+) - K4-1

Always

Below 1 Ω

E15-11 (RL-) - K4-2

Always

Below 1 Ω

(d) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-8 (RR+) - Body ground

Always

10 kΩ or higher

E12-7 (RR-) - Body ground

Always

10 kΩ or higher

E15-4 (RL+) - Body ground

Always

10 kΩ or higher

E15-11 (RL-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

20.

INSPECT REAR SPEAKER ASSEMBLY

(a) Remove the rear speaker assembly (See page ).


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

1.5 to 2.2 Ω

Text in Illustration

*a

Component without harness connected

(Rear Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE REAR SPEAKER ASSEMBLY

21.

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

(a) Disconnect the E12 and E15 stereo component amplifier assembly connectors.

(b) Disconnect the J5 and K5 rear No. 2 speaker assembly connectors.

(c) Measure the resistance between the stereo component amplifier assembly and each of the rear No. 2 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-4 (WF2+) - J5-1

Always

Below 1 Ω

E12-10 (WF2-) - J5-2

Always

Below 1 Ω

E15-5 (WF1+) - K5-1

Always

Below 1 Ω

E15-2 (WF1-) - K5-2

Always

Below 1 Ω

(d) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E12-4 (WF2+) - Body ground

Always

10 kΩ or higher

E12-10 (WF2-) - Body ground

Always

10 kΩ or higher

E15-5 (WF1+) - Body ground

Always

10 kΩ or higher

E15-2 (WF1-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

22.

INSPECT REAR NO. 2 SPEAKER ASSEMBLY

(a) Remove the rear No. 2 speaker assembly (See page ).


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

1.5 to 2.5 Ω

Text in Illustration

*a

Component without harness connected

(Rear No. 2 Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE REAR NO. 2 SPEAKER ASSEMBLY

23.

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

(a) Disconnect the E15 stereo component amplifier assembly connector.

(b) Disconnect the M29 and L33 rear No. 3 speaker assembly connectors.

(c) Measure the resistance between the stereo component amplifier assembly and each of the rear No. 3 speaker assemblies to check for an open circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E15-2 (SR+) - M29-1

Always

Below 1 Ω

E15-7 (SR-) - M29-2

Always

Below 1 Ω

E15-1 (SL+) - L33-1

Always

Below 1 Ω

E15-6 (SL-) - L33-2

Always

Below 1 Ω

(d) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E15-2 (SR+) - Body ground

Always

10 kΩ or higher

E15-7 (SR-) - Body ground

Always

10 kΩ or higher

E15-1 (SL+) - Body ground

Always

10 kΩ or higher

E15-6 (SL-) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

24.

INSPECT REAR NO. 3 SPEAKER ASSEMBLY

(a) Remove the rear No. 3 speaker assembly (See page ).


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

Always

1.5 to 2.5 Ω

Text in Illustration

*a

Component without harness connected

(Rear No. 3 Speaker Assembly)



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPLACE REAR NO. 3 SPEAKER ASSEMBLY

Steering Pad Switch Circuit
DESCRIPTION This circuit sends an operation signal from the steering pad switch assembly to the navigation receiver assembly. If there is an open in the circuit, the audio system cannot be operate ...

Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier
DESCRIPTION The navigation receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit. The sound signal that has been sent is amplified by the stereo compon ...

Other materials about Toyota Venza:

Key information
Keys The following keys are provided with the vehicle. ►Vehicles with smart key system 1. Electronic keys • Operating the smart key system • Operating the wireless remote control function 2. Mechanical keys 3. Key number plate ►Veh ...

Lost Communication with AFS ECU (U0182)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area U0182 No communication from the AFS ECU continues. AFS ECU branch wire or connector Power source circuit of AFS E ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful bec ...

© 2016-2019 Copyright www.tovenza.com

0.1969