Toyota Tundra. Manual — part 168
B: REPLACE FRONT NO. 2 SPEAKER (see REMOVAL )
C: REPLACE FRONT NO. 2 SPEAKER (see REMOVAL )
A: REPAIR OR REPLACE HARNESS OR CONNECTOR
7. INSPECT REAR NO. 1 SPEAKER
a. Disconnect the O1 and O7 speaker connectors.
b. Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITION
NG: REPLACE REAR NO. 1 SPEAKER (see REMOVAL )
Fig. 91: Identifying Rear No. 1 Speaker Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
OK: Go to Next Step
8. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - REAR NO. 1 SPEAKER)
a. Disconnect the K2 receiver connector.
b. Disconnect the O1 and O7 speaker connectors.
c. Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
TESTER CONNECTION SPECIFIED CONDITION
OK (for Double Cab)
C
Tester Connection Condition Specified Condition
1 - 2
Always
3.2 to 4.8 ohms
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra
for RH
TESTER CONNECTION SPECIFIED CONDITION
Fig. 92: Checking Harness And Connector (Radio Receiver - Rear No. 1 Speaker)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Result:
RESULT REFERENCE
Tester Connection
Condition Specified Condition
K2-2 (RL+) - O7-1
Always
Below 1 ohms
K2-6 (RL-) - O7-2
K2-2 (RL+) - Body ground
Always
10 kohms or higher
K2-6 (RL-) - Body ground
Tester Connection
Condition Specified Condition
K2-1 (RR+J- O1-1
Always
Below 1 ohms
K2-3(RR-) - O1-2
K2-1 (RR+) - Body ground
Always
10 kohms or higher
K2-3 (RR-) - Body ground
Result
Proceed to
NG
A
OK (for Column Shift Type)
B
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra
B: REPLACE RADIO RECEIVER (see REMOVAL )
C: REPLACE RADIO RECEIVER (see REMOVAL )
A: REPAIR OR REPLACE HARNESS OR CONNECTOR
SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT
AMPLIFIER
DESCRIPTION
The radio receiver sends a sound signal to the stereo component amplifier through this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier, and then is sent to the
speakers.
If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no
malfunction in the stereo component amplifier or speakers.
WIRING DIAGRAM
Fig. 93: Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier - Wiring
Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT
AMPLIFIER)
a. Disconnect the K4 receiver connector.
OK (for Floor Shift Type)
C
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra
b. Disconnect the K15 amplifier connector.
c. Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITION
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
Fig. 94: Identifying K4 And K15 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Tester Connection
Condition Specified Condition
K4-9(L+) - K15-3(L+)
Always
Below 1 ohms
K4-19(L-) - K15-2(L-)
K4-8(R+) - K15-5(R+)
K4-18(R-) - K15-4(R-)
K4-10(SLD) - K15-6 (SLD)
K4-9 (L+) - Body ground
Always
10 kohms or higher
K4-19 (L-) - Body ground
K4-8 (R+) - Body ground
K4-18 (R-) - Body ground
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra
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