LIGHTING SYSTEM (for Hatchback) > ACC Signal Circuit |
DESCRIPTION
This circuit detects the ignition switch ACC or off condition, and sends it to the main body ECU.WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.READ VALUE USING TECHSTREAM |
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Main Body / Data List.
According to the display on the Techstream, read the Data List.
Main Body Tester Display Measurement Item/Range Normal Condition Diagnostic Note ACC SW Ignition switch ACC signal /
OFF or ONOFF: Ignition switch off
ON: Ignition switch ACC or ON- - OK:
- Normal conditions listed above are displayed.
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OK | ||
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2.CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BATTERY AND BODY GROUND) |
Disconnect the 3E and 3B instrument panel junction block assembly connectors.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition 3E-1 - Body ground Always 11 to 14 V
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 3B-8 - Body ground Always Below 1 Ω
Text in Illustration *a Front view of wire harness connector
(to Instrument Panel Junction Block Assembly)
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OK | |
3.CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - IGNITION SWITCH) |
Reconnect the instrument panel junction block assembly connectors.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition 3B-37 - Body ground Ignition switch ACC 11 to 14 V
Text in Illustration *a Component with harness connected
(Instrument Panel Junction Block Assembly)
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OK | |
4.REPLACE MAIN BODY ECU |
Replace the main body ECU (Click here).
NEXT | |
5.READ VALUE USING TECHSTREAM |
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Main Body / Data List.
According to the display on the Techstream, read the Data List.
Main Body Tester Display Measurement Item/Range Normal Condition Diagnostic Note ACC SW Ignition switch ACC signal /
OFF or ONOFF: Ignition switch off
ON: Ignition switch ACC or ON- - OK:
- Normal conditions listed above are displayed.
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OK | ||
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