Pinout Values and Diagnostic Parameters

LIGHTING SYSTEM:

TERMINALS OF ECU

1. INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)

























(a) *1: Oscilloscope wave
- Gauge set: 5 V/DIV. 5 ms/DIV
- Condition: Ignition switch ON

2. HEADLIGHT BEAM LEVEL CONTROL ECU

















(a) *1: Oscilloscope wave
- Terminal: SPDL - GND, SPDR - GND
- Gauge set: 5 V/DIV. 2 ms/DIV
- Condition: Drive at about 30 km/h (19 mph)





(b) *2: Oscilloscope wave
- Terminal: RH1. RH2. RH3. RH4 - GND LH1. LH2. LH3. LH4 - GND
- Gauge set: 5 V/DIV. 10 ms/DIV
- Condition: The DRL system is on with the engine running or the light control switch is in the HEAD position when the vehicle is stationary or being bounced.
If the value is not within the standard range, some defects on the vehicle side are possible. Inspect the fuse, wire harness and connector.

3. AFS ECU

















(a) *1: Oscilloscope wave
- Terminal: SPDL - GND, SPDR - GND
- Gauge set: 5 V/DIV. 2 ms/DIV
- Condition: Drive at about 30 km/h (19 mph)





(b) *2: Oscilloscope wave
- Terminal: LR1+. LR1-. LR2+. LH2- - GND LL1+. LL1-. LL2+. LL2- - GND
- Gauge set: 5 V/DIV. 10 ms / DIV
- Condition: The DRL system is on with the engine running or the light control switch is in the HEAD position when the vehicle is stationary or being bounced.
If the value is not within the standard range, some defects on the vehicle side are possible. Inspect the fuse, wire harness and connector.