Toyota Tundra. Manual — part 597

Fig. 35: Rear Clearance Sonar Sensor RH - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. REPLACE REAR CORNER NO. 1 ULTRASONIC SENSOR RH

a. Replace the ultrasonic sensor with a normally functioning sensor (see REMOVAL ).

2. CHECK HARNESS AND CONNECTOR (REAR CORNER SENSOR RH - ECU)

a. Disconnect the S2 sensor connector.

b. Disconnect the J35 ECU connector.

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

Standard resistance

HARNESS AND CONNECTOR (REAR CORNER SENSOR RH - ECU) RESISTANCE
SPECIFICATION

Tester Connection

Condition Specified Condition

S2-1 (BI) - J35-24 (BOR) Always

Below 1 ohms

S2-3 (SI) - J35-6 (SOR)

Always

Below 1 ohms

S2-5 (EI) - J35-22 (E2)

Always

Below 1 ohms

S2-1 (BI) - Body ground

Always

10 kohms or higher

S2-3 (SI) - Body ground

Always

10 kohms or higher

S2-5 (EI) - Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra

Fig. 36: Identifying S2 Sensor And J35 ECU Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE

CLEARANCE WARNING BUZZER CIRCUIT

DESCRIPTION

The clearance warning buzzer is installed in the accessory meter.

WIRING DIAGRAM

Fig. 37: Clearance Warning Buzzer - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra

1. CHECK FUSE (ECU-IG No. 1)

a. Remove the ECU-IG No. 1 fuse from the main body ECU.

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

Standard resistance

FUSE (ECU-IG No. 1) RESISTANCE SPECIFICATION

NG: REPLACE FUSE

OK: Go to next step

2. CHECK HARNESS AND CONNECTOR (ACCESSORY METER - BATTERY)

a. Disconnect the K20 meter connector.

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

Standard voltage

HARNESS AND CONNECTOR (ACCESSORY METER - BATTERY) VOLTAGE
SPECIFICATION

Fig. 38: Identifying K20 Meter Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Tester Connection Condition Specified Condition

ECU-IG No. 1 fuse Always

Below 1 ohms

Tester Connection

Switch Condition Specified Condition

K20-23 (IG) - Body ground Ignition switch ON

11 to 14 V

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra

OK: Go to next step

3. CHECK HARNESS AND CONNECTOR (ACCESSORY METER - ECU)

a. Disconnect the J35 ECU connector.

b. Disconnect the K20 meter connector.

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

Standard resistance

HARNESS AND CONNECTOR (ACCESSORY METER - ECU) RESISTANCE
SPECIFICATION

Fig. 39: Identifying J35 ECU And K20 Meter Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

4. REPLACE ACCESSORY METER

a. Replace the accessory meter with a normally functioning or new accessory meter (see

REMOVAL ).

Tester Connection

Condition Specified Condition

J35-12 (BBZ) - K20-11 (BZ) Always

Below 1 ohms

J35-12 (BBZ) -Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra