DESCRIPTION
WIRING DIAGRAM
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (SECURITY COURTESY SWITCH) |
(a) Using the Techstream, read the Data List (See page
).
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Hood Courtesy SW |
Security courtesy switch / ON or OFF |
ON: Engine hood open OFF: Engine hood closed |
- |
OK:
ON (engine hood open) and OFF (engine hood closed) appear on screen according to condition of engine hood.
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT SECURITY COURTESY SWITCH |
(a) Disconnect the A19 switch connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1 (GRD) - 2 (CTYH) |
Unlock position |
Below 1 Ω |
1 (GRD) - 2 (CTYH) |
Lock position |
10 kΩ or higher |
NG | ![]() |
REPLACE SECURITY COURTESY SWITCH |
|
3. |
CHECK HARNESS AND CONNECTOR (SECURITY COURTESY SWITCH - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the A19 switch connector.
(b) Remove the main body ECU (See page ).
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A19-2 (CTYH) - A-20 (HCTY) |
Always |
Below 1 Ω |
A19-1 (GRD) - Body ground |
Always |
Below 1 Ω |
A19-2 (CTYH) or A-20 (HCTY) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Rear window and outside rear view mirror defoggers
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors.
Before operating the defoggers, make sure the back window is completely
closed.
Vehicles with a manual air conditioning system
Tu ...
Vehicle Speed Signal (C1541)
DESCRIPTION
The power steering ECU assembly receives vehicle speed signals from the master
cylinder solenoid (skid control ECU) via CAN communication. The power steering ECU
assembly provides appropriate assisting force in accordance with the vehicle spee ...