DESCRIPTION
The vehicle speed signal consists of pulses sent to the side auto step controller ECU assembly from the main body ECU (multiplex network body ECU).
WIRING DIAGRAM
PROCEDURE
1. |
INSPECT MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A42-11 (SP1+) - Body ground |
Vehicle speed at lower than 8 km/h (5 mph) |
11 to 14 V |
Vehicle speed at 8 km/h (5 mph) or more |
Below 1 V |
*a |
Component with harness connected (Side Auto Step Controller ECU Assembly) |
Result |
Proceed to |
---|---|
NG |
A |
OK |
B |
B | ![]() |
REPLACE SIDE AUTO STEP CONTROLLER ECU ASSEMBLY |
|
2. |
CHECK HARNESS AND CONNECTOR (SIDE AUTO STEP ECU - MAIN BODY ECU) |
(a) Disconnect the A42 side auto step controller ECU assembly connector.
(b) Disconnect the F9 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A42-11 (SP1+) - F9-15 (SPD) |
Always |
Below 1 Ω |
Standard Resistance (Check for Short):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A42-11 (SP1+) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Installation
INSTALLATION
PROCEDURE
1. INSTALL NO. 1 WINDSHIELD GLASS STOPPER
(a) Install 2 new No. 1 windshield glass stoppers to the vehicle body
as shown in the illustration.
Text in Illustration
*1
No. 1 Windshi ...
Inner Rear View Mirror
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (w/ EC Mirror)
(a) Check operation of the electrochromic mirror.
Text in Illustration
*1
Black-colored Tape
...