TERMINALS OF ECU
1. CHECK CLEARANCE WARNING ECU
(a) Disconnect the F95 clearance warning ECU assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F95-1 (IG) - F95-22 (E) |
L - W-B |
Back sonar or clearance sonar switch assembly power source signal |
Ignition switch ON, back sonar or clearance sonar switch assembly on |
11 to 14 V |
Ignition switch ON, back sonar or clearance sonar switch assembly off |
Below 1 V |
|||
F95-22 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Reconnect the F95 clearance warning ECU assembly connector.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F95-5 (SPD) - F95-22 (E) |
SB - W-B |
Vehicle speed signal |
Ignition switch ON, back sonar or clearance sonar switch on |
Alternating between 1.5 to 4.5 V |
F95-7 (PL) - F95-22 (E) |
L - W-B |
Shift position signal |
Ignition switch ON, shift lever in P |
11 to 14 V |
Ignition switch ON, shift lever not in P |
Below 1 V |
|||
F95-9 (L4) - F95-22 (E) |
B - W-B |
Front ultrasonic sensor indicator signal (Front right sensor) |
Clearance warning indicator for front right sensor illuminates |
Below 3 V |
F95-12 (E6) - F95-22 (E) |
W - W-B |
Front ultrasonic sensor ground (Front left sensor) |
Always |
Below 1 Ω |
F95-13 (S6) - F95-22 (E) |
B - W-B |
Front ultrasonic sensor indicator signal (Front left sensor) |
Ignition switch ON, back sonar or clearance sonar switch on, sensor detects obstacle |
Pulse generation (See waveform 1) |
F95-15 (E4) - F95-22 (E) |
LG - W-B |
Rear ultrasonic sensor ground (Rear center left sensor) |
Always |
Below 1 Ω |
F95-16 (S4) - F95-22 (E) |
L - W-B |
Rear ultrasonic sensor indicator signal (Rear center left sensor) |
Ignition switch ON, back sonar or clearance sonar switch on, shift lever in R |
Pulse generation (See waveform 1) |
F95-17 (E1) - F95-22 (E) |
R - W-B |
Rear ultrasonic sensor ground (Rear right sensor) |
Always |
Below 1 Ω |
F95-18 (S1) - F95-22 (E) |
W - W-B |
Rear ultrasonic sensor indicator signal (Rear right sensor) |
Ignition switch ON, back sonar or clearance sonar switch on, shift lever in R |
Pulse generation (See waveform 1) |
F95-19 (CBZ) - F95-22 (E) |
L - W-B |
No. 1 clearance warning buzzer signal |
Buzzer not sounding |
Below 1 V |
Sonar detecting obstacle (Buzzer sounding) |
11 to 14 V |
|||
F95-20 (FF) - F95-22 (E) |
P - W-B |
Clearance warning buzzer signal |
Buzzer sounding |
Pulse generation (See waveform 1) |
F95-23 (RL) - F95-22 (E) |
R - W-B |
Shift position signal |
Ignition switch ON, shift lever in R |
11 to 14 V |
Ignition switch ON, shift lever not in R |
Below 1 V |
|||
F95-24 (TL) - F95-22 (E) |
G - W-B |
Illumination signal |
Ignition switch ON, light control switch on |
11 to 14 V |
Ignition switch ON, light control switch off |
Below 1 V |
|||
F95-26 (L5) - F95-22 (E) |
P - W-B |
Ultrasonic sensor (front left sensor) indicator signal |
Clearance warning indicator for front left sensor illuminates |
Below 3 V |
F95-28 (L1) - F95-22 (E) |
Y - W-B |
Ultrasonic sensor (rear right sensor) indicator signal |
Clearance warning indicator for rear right sensor illuminates |
Below 3 V |
F95-29 (L2) - F95-22 (E) |
GR - W-B |
Ultrasonic sensor (rear left sensor) indicator signal |
Clearance warning indicator for rear left sensor illuminates |
Below 3 V |
F95-30 (L3) - F95-22 (E) |
SB - W-B |
Ultrasonic sensor (rear center right and left sensor) indicator signal |
Clearance warning indicator for back sensor illuminates |
Below 3 V |
F95-31 (L10) - F95-22 (E) |
LG - W-B |
Clearance warning ECU assembly signal |
Clearance warning indicator's operation indicator illuminates |
Below 3 V |
F95-33 (E5) - F95-22 (E) |
G - W-B |
Front ultrasonic sensor ground (Front right sensor) |
Always |
Below 1 Ω |
F95-34 (S5) - F95-22 (E) |
L - W-B |
Front ultrasonic sensor indicator signal (Front right sensor) |
Ignition switch ON, back sonar or clearance sonar switch on, sensor detects obstacle |
Pulse generation (See waveform 1) |
F95-37 (E2) - F95-22 (E) |
R - W-B |
Rear ultrasonic sensor ground (Rear left sensor) |
Always |
Below 1 Ω |
F95-38 (S2) - F95-22 (E) |
G - W-B |
Rear ultrasonic sensor communication signal (Rear left sensor) |
Ignition switch ON, back sonar or clearance sonar switch on, shift lever in R |
Pulse generation (See waveform 1) |
F95-39 (E3) - F95-22 (E) |
Y - W-B |
Rear ultrasonic sensor ground (Rear center right sensor) |
Always |
Below 1 Ω |
F95-40 (S3) - F95-22 (E) |
B - W-B |
Rear ultrasonic sensor communication signal (Rear center right sensor) |
Ignition switch ON, back sonar or clearance sonar switch on, shift lever in R |
Pulse generation (See waveform 1) |
(e) Using an oscilloscope, check waveform 1.
Measurement Condition
Item |
Content |
---|---|
Terminal No. (Symbol) |
F95-12 (E6) - F95-13 (S6) F95-15 (E4) - F95-16 (S4) F95-17 (E1) - F95-18 (S1) F95-33 (E5) - F95-34 (S5) F95-37 (E2) - F95-38 (S2) F95-39 (E3) - F95-40 (S3) |
Tool Setting |
2 V/DIV., 0.1 msec./DIV. |
Condition |
Ignition switch ON, back sonar or clearance sonar switch on, shift lever in R |
*a |
Ultrasonic sensor is normal |
*b |
Open circuit in ultrasonic sensor |
Inspection
INSPECTION
PROCEDURE
1. INSPECT TIE ROD END SUB-ASSEMBLY
(a) Install the nut.
(b) Flip the ball joint stud back and forth 5 times as shown in the illustration.
(c) Using a torque wrench, turn the nut co ...
Yaw Rate Sensor Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Yaw Rate Sensor Communication Stop Mode
Either condition is met:
"Yaw Rate / Deceleration Sensor" is not displayed on the &quo ...