RM38T0EC _51 Engine / Hybrid System _144957 HYBRID / BATTERY CONTROL _0604233 MOTOR GENERATOR CONTROL SYSTEM Y

HYBRID / BATTERY CONTROL  MOTOR GENERATOR CONTROL SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  


PROCEDURE

1.VEHICLE BROUGHT TO WORKSHOP
Result:
Proceed to
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2.CUSTOMER PROBLEM ANALYSIS
2.CUSTOMER PROBLEM ANALYSIS
HINT:

If the malfunction is not reproduced, perform a simulation test.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING

1.

For the simulation test, reproduce the driving conditions that were present when the problem occurred. These conditions should be based on the customer's comments and Freeze Frame Data that is recorded with DTCs, such as the opening angle of the accelerator pedal, SOC (stateof charge), engine coolant temperature, engine speed, and generator (MG1) / front motor (MG2) rpm and torque.

2.

When inspecting electrical circuits, check the connection condition of the connector and the contact pressure of each terminal.

Check the terminals for deformation, and check the connector for water ingress and foreign matter.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>ELECTRONIC CIRCUIT INSPECTION PROCEDURE



Result:
Proceed to
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NEXT

3.CONDUCT BASIC INSPECTION
3.CONDUCT BASIC INSPECTION
a.

Measure the auxiliary battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V



b.

Check the connection of the negative (-) and positive (+) auxiliary battery terminals.

OK:

The terminals are connected securely and there is no contact problem.



c.

Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.


Result:
Proceed to
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NEXT

4.READ VALUE USING GTS
4.READ VALUE USING GTS
a.

Perform the Health Check using the GTS.


b.

Perform the following steps when the data setting screen is displayed.

i.

Select the systems for which to perform Health Check and check for time stamp data.

Selectable items:
·

Powertrain

·

Chassis

·

Body

·

Store All Data


HINT:

The hybrid system performs control and intercommunication with other systems, so check and record the DTCs for all systems.




c.

Select "Yes" when "Do you want to store time stamp data?" is displayed.

HINT:

If "Yes" is not selected, time stamp data will not be stored.



d.

Check for DTC and Vehicle Control History (RoB) code output.

·

If an abnormality judgment flag has not been output during the current trip, perform the inspection for simulation method.

·

If the malfunction symptoms are not reproduced, it can be judged that the condition has returned to normal.

GTS Display
Current / Confirmed Pending History Test Failed 5 digits DTC 7 digits DTC
x Shows the malfunction judgment results during the current trip. Shows the malfunction judgment results during the current trip.
x Shows the malfunction judgment results up to now. -
x Shows the malfunction judgment results up to now. Shows the malfunction judgment results up to now.
x x - Shows the malfunction judgment results during the current trip.



Result:
Result Proceed to
DTCs are output. A
Vehicle Control History (RoB) code is output, but DTC is not output. B
DTC is not output and Vehicle Control History (RoB) code is not output, but malfunction symptoms are reproduced. C



A

5.GO TO DTC CHART

B

GO TO VEHICLE CONTROL HISTORY (RoB)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>VEHICLE CONTROL HISTORY (RoB)


C

GO TO PROBLEM SYMPTOMS TABLES

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>PROBLEM SYMPTOMS TABLE


6.ADJUST AND/OR REPAIR
Result:
Proceed to
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NEXT

CONDUCT CONFIRMATION TEST
a.

Clear the DTCs.


b.

Then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

For details, refer to the confirmation driving pattern for the relevant DTC diagnostic procedure.