DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Yaw Rate Sensor Communication Stop Mode |
Either condition is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
PROCEDURE
1. |
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL |
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).
|
2. |
CHECK FOR OPEN IN CAN BUS WIRE (YAW RATE SENSOR ASSEMBLY BRANCH WIRE) |
(a) Disconnect the F36 yaw rate sensor assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connector |
Switch Condition |
Specified Condition |
---|---|---|
F36-3 (CANH) - F36-2 (CANL) |
Ignition switch off |
54 to 69 Ω |
*a |
Front view of wire harness connector (to Yaw Rate Sensor Assembly) |
NG |
REPAIR OR REPLACE YAW RATE SENSOR ASSEMBLY BRANCH WIRE OR CONNECTOR (CANH, CANL) |
|
3. |
CHECK HARNESS AND CONNECTOR (YAW RATE SENSOR ASSEMBLY - BATTERY AND BODY GROUND) |
(a) Connect the cable to the negative (-) battery terminal. NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F36-1 (GND) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F36-4 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
*a |
Front view of wire harness connector (to Yaw Rate Sensor Assembly) |
OK |
REPLACE YAW RATE SENSOR ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
A bolt without a torque specification is shown in the standard bolt chart (See
page ).
PROCEDURE
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(a) Attach the 2 claws to install the air conditioning amplifier ...
Compressor Lock Sensor Circuit (B1422/22)
SYSTEM DESCRIPTION
The ECM sends the engine speed signal to the air conditioning amplifier assembly
via CAN communication.
The air conditioning amplifier assembly reads the difference between compressor
speed and engine speed. When the difference becomes ...