DESCRIPTION
This is the power source circuit to operate the radio and display receiver assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BATTERY AND BODY GROUND) |
(a) Disconnect the radio and display receiver assembly connectors. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
R30-7 (GND1) - 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 |
---|---|---|
R30-4 (+B1) - R30-7 (GND1) |
Always |
11 to 14 V |
R30-3 (ACC1) - R30-7 (GND1) |
Ignition switch ACC |
11 to 14 V |
R31-1 (IG) - R30-7 (GND1) |
Ignition switch ON |
11 to 14 V |
*a |
Front view of wire harness connector (to Radio and Display Receiver Assembly) |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) The vehicle's ECU uses the ISO 9141-2 for communication protocol. The terminal
arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.
Symbols (Terminal No.)
Terminal Description
Condition
...
ECM Communication Circuit Malfunction (C1203)
DESCRIPTION
The circuit sends TRAC, A-TRAC and VSC control information from the skid control
ECU (master cylinder solenoid) to the ECM, and engine control information from the
ECM to the skid control ECU (master cylinder solenoid) via the CAN communication
system.
DTC Code
...
Washer Level Warning Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT LEVEL WARNING SWITCH ASSEMBLY
HINT:
This check should be performed with the windshield washer motor and pump assembly
installed on the washer jar.
(a) Fill the washer jar with washer fluid.
(b) ...