Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne di abswebdb cic12333
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download cic12333 documenatation <<
Text preview - extract from the document
DI-280
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI6CL-03
DTC C1233 / 33, C1234 / 34 Yaw Rate Sensor Circuit
CIRCUIT DESCRIPTION
DTC No. DTC Detecting Condition Trouble Area
When any of the conditions 1. through 4. is detected:
1. ECU terminal IG1 voltage is 9.5 V to 17.0 V, and the
condition that yaw rate sensor voltage is out of the range
from 0.25 V to 4.75 V continues for 1 sec. or more.
2. The conditions that yaw rate sensor open detect circuit
signal is ON and the voltage of ECU terminal IG1 is 9.5
V to 17 V continue for 1 sec. or more.
C1233 / 33
3. The conditions that yaw rate sensor power source volt-
age is out of the range from 4.4 V to 5.6 V and the volt-
age of ECU terminal IG1 is 9.5 V to 17 V continue for 1
sec. or more.
4. The condition that yaw rate sensor signal is momentarily
open occurs 10 times or more and the voltage of ECU S Yaw rate sensor
terminal IG1 is 9.5 V to 17 V. S Yaw rate sensor circuit
Condition 1. or 2. is detected:
1. The conditions that yaw rate sensor VYS terminal volt-
age is 4.75 V to 5.25 V and YD malfunction signal of
yaw rate sensor is ON continue for 5 sec. or more.
2. Shift lever position is in P range and output voltage of
C1234 / 34 yaw rate sensor is out of the range from 2.4 V to 2.6 V
or after the difference from zero point calibration voltage
of yaw rate sensor has become 0.08 V or more and
when the condition that the vehicle speed exceeds 15
km/h (9 mph) while output condition of yaw rate sensor
has been repeated more than 3 times.
2002 4RUNNER (RM887U)
Author : Date : 456
DI-281
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
WIRING DIAGRAM
Skid Control ECU
Y1 18
BR-B
Yaw Rate Sensor V18 YSS
(Shielded)
28
W
YAW2 V18 YAW
1
27
B
GYAW V18 GYAW
3
9
R
VYS V18 VYS
5
19
Y
YD V18 YD
4
F14346
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 in case of using the hand-held tester and start from step 3 in case of not
using the hand-held tester.
1 Check output value of yaw rate sensor.
PREPARATION:
(a) Remove the 2 bolts and the yaw rate sensor with the con-
nector still connected.
(b) Connect the hand-held tester to DLC3.
(c) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(d) Select the DATALIST mode on the hand-held tester.
CHECK:
F02808 Check that the yaw rate value of the yaw rate sensor displayed
on the hand-held tester is changing: Place the yaw rate sensor
vertically to the ground and turn the sensor pivoted on its center.
OK:
Yaw rate value must be changing.
OK Go to step 4.
NG
2002 4RUNNER (RM887U)
Author : Date : 457
DI-282
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
2 Check whether continuity exists between terminal YD of yaw rate sensor and ter-
minal skid control ECU.
NG Repair or replace harness or connector.
OK
3 Check voltage between terminals YD and GND of skid control ECU.
ON
PREPARATION:
Remove the skid control ECU with the connector still con-
V16 V18 V19 nected.
CHECK:
6 19 16 8
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals YD (V18 - 19) and
GND (V16 - 6, 31, V19 - 8, 16) of the skid control ECU.
31 OK:
F13776 Voltage: 4.5 - 5.3 V
NG Replace yaw rate sensor.
OK
Check and replace skid control ECU.
2002 4RUNNER (RM887U)
Author : Date : 458
DI-283
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
4 Check yaw rate sensor.
CHECK:
(-) (+)
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals 1 and 3, 3 and 4 of
4 the yaw rate sensor with the connector still connected.
1 OK:
3
Terminals 1 and 3
Approx. 2.5 V
(YAW - GYAW)
Terminals 3 and 4
(+) (-) Approx. 4.5 V - 5.3 V
F02123 (GYAW - YD)
NG Replace yaw rate sensor.
OK
Check and replace skid control ECU.
2002 4RUNNER (RM887U)
Author : Date : 459
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo