Pinout Values and Diagnostic Parameters

LIGHTING: LIGHTING SYSTEM: TERMINALS OF ECU

1. CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)





(a) Disconnect the IA, ID, IF and IM J/B connectors.

(b) Measure the voltage and resistance between the specified terminals of the wire harness side connectors and body ground.

Standard voltage:





Standard resistance:





(c) If the result is not as specified, there may be a malfunction on the wire harness side.

(d) Reconnect the IA, ID, IF, and IM J/B connectors.

(e) Measure the resistance and voltage between the specified terminals of the J/B connectors and body ground.

Standard resistance:





Standard voltage:









(f) If the result is not as specified, the main body ECU (Instrument panel J/B) may have a malfunction.

HINT
*1: with smart key system

*2: without smart key system

*3: Pedal type parking brake

*4: Lever type parking brake

(1) Waveform 1









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