Diagnosis procedure
1.Connector inspection
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness continuity (short circuit)
Check the continuity between the data link connector terminals.
Is the inspection result normal? Yes >> go to 3.
No >> check the harness and repair the root cause.
3.Check harness continuity (short circuit)
Check the continuity between the data link connector and the ground.
Is the inspection result normal? YES >> GO TO 4.
NO >> Check the harness and repair the root cause.
4.Check ecm and bcm termination circuit
Is the measurement value within the specification? YES >> GO TO 5.
NO >> Replace the ECM and/or the BCM.
5.Check symptom
Connect all the connectors. Check if the symptoms described in the “symptom (results from interview with customer)” are reproduced.
Inspection result
Reproduced>>go to 6.
Non-reproduced>>start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
6.Check unit reproduction
Perform the reproduction test as per the following procedure for each unit.
Note:
Ecm and bcm have a termination circuit. Check other units first.
Note:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>connect the connector. Check other units as per the above procedure.
Non-reproduced>>replace the unit whose connector was disconnected.
Dlc branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the data link connector for
damage, bend and loose connection
(connector side and harness side).
Is the inspection resul ...
Can communication circuit
Diagnosis procedure
1.Connector inspection
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Disconnect all the unit connectors on CAN communication system.
Check terminals and connectors for damage, bend and loose connection.
Is the inspection resu ...
ASCD Indicator
Component Function Check
1.CHECK ASCD INDICATOR FUNCTION
Check ASCD indicator under the following conditions.
ASCD INDICATOR
CONDITION
SPECIFICATION
CRUISE LAMP
Ignition switch: ON
MAIN switch: Pressed at the 1st time →
at the 2nd ti ...