DESCRIPTION
WIRING DIAGRAM
(See page ).
PROCEDURE
1. |
CONFIRM MODEL |
(a) Choose the model to be inspected.
Result
Result |
Proceed to |
---|---|
for 6 Speakers |
A |
for 4 Speakers |
B |
B | ![]() |
GO TO STEP 9 |
|
2. |
CHECK SPEAKER |
(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.
Result
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 |
|
3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY) |
(a) Disconnect the R30 radio and display receiver assembly connector.
(b) Disconnect the S46 and S47 front No. 2 speaker assembly connectors.
(c) Disconnect the S15 and S16 front No. 1 speaker assembly connectors.
(d) Measure the resistance between the radio and display 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 |
---|---|---|
R30-1 (FR+) - S47-2 (+) |
Always |
Below 1 Ω |
R30-5 (FR-) - S47-4 (-) |
Always |
Below 1 Ω |
R30-2 (FL+) - S46-2 (+) |
Always |
Below 1 Ω |
R30-6 (FL-) - S46-4 (-) |
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 |
---|---|---|
S47-1 (+) - S16-1 |
Always |
Below 1 Ω |
S47-3 (-) - S16-2 |
Always |
Below 1 Ω |
S46-1 (+) - S15-1 |
Always |
Below 1 Ω |
S46-3 (-) - S15-2 |
Always |
Below 1 Ω |
(f) Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
R30-1 (FR+) - Body ground |
Always |
10 kΩ or higher |
R30-5 (FR-) - Body ground |
Always |
10 kΩ or higher |
R30-2 (FL+) - Body ground |
Always |
10 kΩ or higher |
R30-6 (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 |
---|---|---|
S47-1 (+) - Body ground |
Always |
10 kΩ or higher |
S47-3 (-) - Body ground |
Always |
10 kΩ or higher |
S46-1 (+) - Body ground |
Always |
10 kΩ or higher |
S46-3 (-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
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:
|
|
NG | ![]() |
REPLACE FRONT NO.2 SPEAKER ASSEMBLY |
|
5. |
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:
OK | ![]() |
END |
|
6. |
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:
|
|
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE FRONT NO.1 SPEAKER ASSEMBLY |
7. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY) |
(a) Disconnect the R29 radio and display receiver assembly connector.
(b) Disconnect the S18 and S17 rear speaker assembly connectors.
(c) Measure the resistance between the radio and display 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 |
---|---|---|
R29-1 (RR+) - S18-1 |
Always |
Below 1 Ω |
R29-3 (RR-) - S18-2 |
Always |
Below 1 Ω |
R29-2 (RL+) - S17-1 |
Always |
Below 1 Ω |
R29-1 (RL-) - S17-2 |
Always |
Below 1 Ω |
(d) Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
R29-1 (RR+) - Body ground |
Always |
10 kΩ or higher |
R29-3 (RR-) - Body ground |
Always |
10 kΩ or higher |
R29-2 (RL+) - Body ground |
Always |
10 kΩ or higher |
R29-6 (RL-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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:
|
|
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE REAR SPEAKER ASSEMBLY |
9. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY) |
(a) Disconnect the R30 radio and display receiver assembly connector.
(b) Disconnect the S46 and S47 front No. 2 speaker assembly connectors.
(c) Disconnect the S15 and S16 front No. 1 speaker assembly connectors.
(d) Measure the resistance between the radio and display 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 |
---|---|---|
R30-1 (FR+) - S47-2 (+) |
Always |
Below 1 Ω |
R30-5 (FR-) - S47-4 (-) |
Always |
Below 1 Ω |
R30-2 (FL+) - S46-2 (+) |
Always |
Below 1 Ω |
R30-6 (FL-) - S46-4 (-) |
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 |
---|---|---|
S47-1 (+) - S16-1 |
Always |
Below 1 Ω |
S47-3 (-) - S16-2 |
Always |
Below 1 Ω |
S46-1 (+) - S15-1 |
Always |
Below 1 Ω |
S46-3 (-) - S15-2 |
Always |
Below 1 Ω |
(f) Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
R30-1 (FR+) - Body ground |
Always |
10 kΩ or higher |
R30-5 (FR-) - Body ground |
Always |
10 kΩ or higher |
R30-2 (FL+) - Body ground |
Always |
10 kΩ or higher |
R30-6 (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 |
---|---|---|
S47-1 (+) - Body ground |
Always |
10 kΩ or higher |
S47-3 (-) - Body ground |
Always |
10 kΩ or higher |
S46-1 (+) - Body ground |
Always |
10 kΩ or higher |
S46-3 (-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
10. |
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:
|
|
NG | ![]() |
REPLACE FRONT NO.2 SPEAKER ASSEMBLY |
|
11. |
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:
OK | ![]() |
END |
|
12. |
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:
|
|
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE FRONT NO.1 SPEAKER ASSEMBLY |
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR WHEEL
2. DRAIN BRAKE FLUID
HINT:
Immediately wash off any brake fluid that comes into contact with any painted
surfaces.
3. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY
(a) Release the parking brake, and remove the rear brake drum.
If the rear brake drum cannot be ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE KNUCKLE GREASE RETAINER CAP (for 2WD)
(a) Using a screwdriver and hammer, remove the knuckle grease retainer cap.
2. REMOVE FRONT AXLE HUB OIL SEAL (for 4WD)
(a) Using a screwdriver and hammer, remove the front axle hub oil seal.
3. REMOVE FRONT WHEEL ADJUST ...
Ambient Temperature Sensor Circuit (B1412)
DESCRIPTION
The ambient temperature sensor is installed in front of the condenser to detect
the ambient temperature which is used to control the air conditioning system AUTO
mode. This sensor is connected to the air conditioning amplifier assembly and detects
fluctuations in the ambient tempe ...