Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 348
PM–16
PARK ASSIST / MONITORING – CLEARANCE SONAR SYSTEM
PM
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a pre-
amplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Remove the No. 1 ultrasonic sensor.
(b) Measure the resistance.
Standard resistance
(c) Reinstall the sensor.
NG
OK
Back Sonar Sensor LH Circuit
1
INSPECT NO.1 ULTRASONIC SENSOR
Clearance Warning ECU
No. 1 Ultrasonic Sensor (LH)
S
E
S6
E1
B132694E01
2
1
I102666E01
Tester connection
Specified condition
1 - 2
8 to 12 k
Ω
REPLACE NO. 1 ULTRASONIC SENSOR
PARK ASSIST / MONITORING – CLEARANCE SONAR SYSTEM
PM–17
PM
(a) Disconnect the E31 clearance warning ECU connector.
(b) Disconnect the N1 connector from the No. 1 ultrasonic
sensor.
(c) Measure the resistance .
Standard resistance
(d) Reconnect the ECU connector.
(e) Reconnect the sensor connector.
NG
OK
2
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 1
ULTRASONIC SENSOR)
1 2
Wire Harness Side:
Clearance Warning ECU
No. 1 Ultrasonic Sensor (LH)
E31
N1
S
E
S6
E1
B132712E03
Tester connection
Specified condition
S6 (E31-12) - S (N1-2)
Below 1
Ω
E1 (E31-11) - E (N1-1)
Below 1
Ω
S6 (E31-12) - Body ground
10 k
Ω or higher
E1 (E31-11) - Body ground
10 k
Ω or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
PM–18
PARK ASSIST / MONITORING – CLEARANCE SONAR SYSTEM
PM
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a pre-
amplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Remove the No. 1 ultrasonic sensor.
(b) Measure the resistance.
Standard resistance
(c) Reinstall the sensor.
NG
OK
Back Sonar Sensor RH Circuit
1
INSPECT NO. 1 ULTRASONIC SENSOR
Clearance Warning ECU
No. 1 Ultrasonic Sensor (RH)
S
E
S5
E2
B132694E02
2
1
I102666E01
Tester connection
Specified condition
1 - 2
8 to 12 k
Ω
REPLACE NO. 1 ULTRASONIC SENSOR
PARK ASSIST / MONITORING – CLEARANCE SONAR SYSTEM
PM–19
PM
(a) Disconnect the E31 clearance warning ECU connector.
(b) Disconnect the M1 No. 1 ultrasonic sensor connector.
(c) Measure the resistance.
Standard resistance
(d) Reconnect the ECU connector.
(e) Reconnect the sensor connector.
NG
OK
2
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 1
ULTRASONIC SENSOR)
1 2
Wire Harness Side:
Clearance Warning ECU
No. 1 Ultrasonic Sensor (RH)
E31
M1
S
E
S5
E2
B132712E04
Tester connection
Specified condition
S5 (E31-6) - S (M1-2)
Below 1
Ω
E2 (E31-5) - E (M1-1)
Below 1
Ω
S5 (E31-6) - Body ground
10 k
Ω or higher
E2 (E31-5) - Body ground
10 k
Ω or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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