Exterior Lighting System

LIGHTING (EXT): LIGHTING SYSTEM: TERMINALS OF ECU

1. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU





(a) Disconnect the 2A, 2D, 2F, 2K, D13 and D14 instrument panel junction block assembly and main body ECU connectors.

(b) Measure the voltage according to the value(s) in the table below.





*1: w/o Smart Key System

If the result is not as specified, there may be a malfunction in the wire harness.

(c) Measure the resistance according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness.

(d) Reconnect the 2A, 2D, 2F, 2K, D13 and D14 instrument panel junction block assembly and main body ECU connectors.

(e) Measure the voltage or check for pulses according to the value(s) in the table below.









*2: w/ Daytime Running Light System

If the result is not as specified, the main body ECU or instrument panel junction block assembly may have a malfunction.

(1) Waveform 1









HINT
If the ambient light becomes brighter, width A becomes narrower.

2. CHECK HEADLIGHT SWIVEL ECU ASSEMBLY (w/ HID Headlight System)

(a) Disconnect the A45 headlight swivel ECU assembly connector.





(b) Measure the resistance according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness.

(c) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness.

(d) Reconnect the A45 headlight swivel ECU assembly connector.

(e) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the headlight swivel ECU assembly may have a malfunction.

(1) Waveform 1









3. CHECK INNER REAR VIEW MIRROR ASSEMBLY (w/ HID Headlight System)

(a) Disconnect the T2 inner rear view mirror assembly connector.





(b) Measure the resistance according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness.

(c) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness.

(d) Reconnect the T2 inner rear view mirror assembly connector.

(e) Measure the voltage or check for pulses according to the value(s) in the table below.





If the result is not as specified, the inner rear view mirror assembly may have a malfunction.

(1) Waveform 1