TERMINALS OF ECU

1. DISTANCE CONTROL ECU

a. Reference: Oscilloscope wave form (*1)

HINT:
- Terminal: LRDD - GND
- Gauge set: 2 V/DIV, 10 ms/DIV
- Condition: Ignition switch ON

b. Reference: Oscilloscope wave form (*2)

HINT:
- Terminal: LRRD - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch ON

c. Reference: Oscilloscope wave form (*3)

HINT:
- Terminal: ELC - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch ON

d. Reference: Oscilloscope wave form (*4)

HINT:
- Terminal: LCS - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch ON

2. ECM
If the value is not within the standard range, some defects on the vehicle is suspected.

a. Reference: Oscilloscope wave form (*1)

HINT:
- Terminal: LCS - E1
- Gauge set: 1 V/DIV, 20 ms/DIV
- Condition: Ignition switch ON

b. Reference: Oscilloscope wave form (*2)

HINT:
- Terminal: ELC - E1
- Gauge set: 1 V/DIV, 20 ms/DIV
- Condition: Ignition switch ON

3. LASER RADAR SENSOR

a. Reference: Oscilloscope wave form (*1)

HINT:
- Terminal: LRDD - SGND
- Gauge set: 1 V/DIV, 2 ms/DIV
- Condition: Ignition switch

b. Reference: Oscilloscope wave form (*2)

HINT:
- Terminal: LRRD - SGND
- Gauge set: 1 V/DIV, 2 ms/DIV
- Condition: Ignition switch ON

4. BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Dynamic Laser Cruise Control