Page 2457 of 4500
Condition: Ignition switch ON
Fig. 26: Signal Waveform Graph (Waveform 1)
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b. Reference: waveform 2
HINT:
Terminal: LRRD - SGND
Gauge set: 1 V/DIV, 2 ms/DIV
Condition: Ignition switch ON
Page 2458 of 4500
Fig. 27: Signal Waveform Graph (Waveform 2)
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1.DIAGNOSIS FUNCTION
a. The diagnosis function makes the master warning light and the multi-information display come on,
and the CRUISE main indicator light blinks as shown in the illustration. When a malfunction
occurs in the dynamic laser cruise control system, the DTCs are stored in the ECM.
Page 2459 of 4500
Fig. 28: Identifying CRUISE Main Indicator Light And Master Warning Light
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Page 2460 of 4500
Fig. 29: Identifying Blinking Pattern Of CRUISE Main Indicator Light
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2.DESCRIPTION
a. The ECM controls the dynamic laser cruise control system of the vehicle. The data and DTCs
relating to the dynamic laser cruise control system can be read from the DLC3 of the vehicle. If
either DTC or CRUISE OK is not displayed in the multi-information display on the combination
meter when checking for DTCs, there may be a problem with the combination meter or the CAN
communication and multiplex communication system.
Use the hand-held tester to check and solve the problem.
3.CHECK THE DLC3
a. The vehicle's ECM uses ISO 9141-2 for communication. The terminal arrangement of the DLC3
complies with SAE J1962 and matches the ISO 9141-2 format.
Page 2461 of 4500
Fig. 30: Identifying DLC3 Connector Terminals
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DLC3 CONNECTOR TERMINALS RESISTANCE
HINT:
If the displa
y shows "UNABLE TO CONNECT TO VEHICLE" when you have connected the hand-held
Symbols (Terminals No.)Terminal DescriptionConditionSpecified Condition
SIL(7) - SG(5)Bus "+" lineDuring transmissionPulse generation
CG(4) - Body groundChassis groundAlwaysBelow 1 ohms
SG(5) - Body groundSignal groundAlwaysBelow 1 ohms
BAT(16) - Body groundBattery positiveAlways11 to 14 V
CANH(6) - CANL(14)HIGH-level CAN bus lineIG switch OFF54 to 67 ohms
CANH(6) - Battery positiveHIGH-level CAN bus lineIG switch OFF1 Mohms or higher
CANH(6) - CG(4)HIGH-level CAN bus lineIG switch OFF3 kohms or higher
CANL(14) - Battery positiveLOW-level CAN bus lineIG switch OFF1 Mohms or higher
CANL(14) - CG(4)LOW-level CAN bus lineIG switch OFF3 kohms or higher
Page 2462 of 4500

tester to the DLC3, turned the ignition switch to the ON position and operated the tester, there is a
problem on either the vehicle side or the tool side.
If communication is normal when the tool is connected to another vehicle, inspect the DLC3 on the
original vehicle.
If communication is still impossible when the tool is connected to another vehicle, the problem is
probably in the tool itself, so consult the Service Department listed in the tool's instruction manual.
4.CHECK THE INDICATOR
a. Turn the ignition switch to the ON position.
b. Check that the CRUISE main indicator light and RADAR READY indicator come on when the
main switch ON-OFF button is pushed on, and that the indicator light goes off when the ON-OFF
button is pushed off.
HINT:
If the indicator check result shows a problem, proceed to troubleshooting (see CRUISE MAIN
INDICATOR LIGHT CIRCUIT ) for the combination meter section.
<0029004c004a0011000300160014001d0003002c0047004800510057004c0049005c004c0051004a0003002600350038002c00360028000300300044004c00510003002c00510047004c004600440057005200550003002f004c004a004b00570003002400
51004700030035002400270024003500030035002800240027[Y Indicator
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HINT:
Page 2463 of 4500
If a malfunction occurs in the vehicle speed sensors, the stop lamp switch, or other related parts during
cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and blinks the CRUISE
main indicator light. This indicator light informs the driver of the malfunction. At the same time, the
malfunction is stored as a diagnostic trouble code.
Fig. 32: Identifying Blinking Pattern Of CRUISE Main Indicator Light
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1.DTC CHECK
a. Connect the hand-held tester to the DLC3.
b. Turn the ignition switch to the ON position.
c. Read the DTCs by following the prompts on the tester screen.
2.DTC CLEAR
a. Connect the hand-held tester to the DLC3.
b. Turn the ignition switch to the ON position.
c. Clear the DTCs following the prompts on the tester screen.
HINT:
Refer to the han
d-held tester operators manual for further details.
Page 2464 of 4500
Fig. 33: Connecting Hand-Held Tester To DLC3
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1.Constant speed control mode and vehicle-to-vehicle distance control mode:
If the following conditions are detected while the dynamic laser cruise control is in operation, the system
clears the stored vehicle speed in the ECM and cancels the dynamic laser cruise control operation.
Fig. 34: Identifying CRUISE Main Indicator Light And Master Warning Light