6.6.6 Diagnostic Information and Procedures
6.6.6.1 Diagnosis Description
Read DTC codes through the vehicle data-link connector (DLC data-link connector). Use ABS control module data table, through
reading scan tool displayed data, to read the switches and sensors function without removing any component. Reading the data is
the first diagnostic step and is also one of the ways to reduce diagnostic time.
6.6.6.2 Visual Inspection
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Confirm Fault Symptom
In the diagnostic process, the most difficult situation is that no symptoms appear. In this case, you must thoroughly analyze the
described malfunction. and then simulate the malfunction occurring conditions and circumstances. Even for a very experienced
technician, if carry out the diagnostic without verify the malfunctions first, it is possible to ignore a number of important things,
and make wrong judgment. This will cause the diagnostic can not continue.
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Check the easy to access system components to identify whether there is a significant damage or a potential malfunction.
–
Connectors connection and vibration should be thoroughly examined. If possible, for vibrations caused malfunction, it is
recommended to use the vibration method.
1. With a finger, gently shake the sensor that may be faulty and check for malfunction.
2. Gently shake the sensor in the vertical and horizontal directions.
3. Gently shake the sensor wiring harness in the vertical and horizontal directions.
6.6.6.3 DTC Code (DTC) List
DTC code
Description
C1101
ECU Power Supply Voltage: High Voltage
C1102
ECU Power Supply Voltage: Low Voltage
C1200
Wheel Speed Sensor, Left Front: Open / Short
C1201
Wheel Speed Sensor, Left Front: Scope, Performance, Intermittent Fault
C1202
Wheel Speed Sensor, Left Front: Invalid / No Signal
C1203
Wheel Speed Sensor, Right Front: Open / Short
C1204
Wheel Speed Sensor, Right Front: Scope, Performance, Intermittent Fault
C1205
Wheel Speed Sensor, Right Front: Invalid / No Signal
C1206
Wheel Speed Sensor, Left Rear: Open / Short
C1207
Wheel Speed Sensor, Left Rear: Scope, Performance, Intermittent Fault
C1208
Wheel Speed Sensor, Left Rear: Invalid / No Signal
C1209
Wheel Speed Sensor, Right Rear: Open / Short
C1210
Wheel Speed Sensor, Right Rear: Scope, Performance, Intermittent Fault
C1211
Wheel Speed Sensor, Right Rear: Invalid / No Signal
C1213
Wheel Speed Sensor Frequency Error (General wheel speed sensor fault, slip or tooth error)
C1604
ECU Hardware Malfunction
Brake System
ABS / TCS / EBD / ESP
6-75
EC718/EC718RV EC715/EC715RV 10/2009
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