SSANGYONG Rexton Y200 Manual page 960

4E-82 ABS AND TCS
DIAGNOSTIC TROUBLE CODE (DTC) 800 - LOW VOLTAGE FAULT
Circuit Description
Proper operation of the electronic brake control module
(EBCM) requires a certain minimum voltage. The EBCM
monitors the ignition feed circuit to determine if the
voltage falls below a minimum level.
Diagnosis
This test checks for battery output, proper grounding,
blown fuses, faulty ignition switch, and problems in
the circuitry.
Cause
•
The battery is defective.
•
There is a defective ground connection.
•
A connector is damaged.
•
A wire is broken or shorted.
•
A fuse is blown.
•
The ignition switch is malfunctioning.
Action Taken When the DTC Sets
ABS action is disabled during the period of low voltage,
and the ABS warning lamp is ON for the remainder of
the ignition cycle. If the failure is intermittent, the EBCM
will enable the system at the next ignition cycle and
set a history DTC 800.
Test Description
The number(s) below refer to step(s) on the diagnostic
table.
1. This step determines whether there is voltage at
the battery and at the high current source.
7. This step checks for voltage at the ignition 1
source.
15. This step begins the check for voltage at the EBCM
end of the ABS harness.
Diagnostic Aids
It is very important to perform a thorough inspection
of the wiring and the connectors. Failure to do so may
result in misdiagnosis, causing part replacement with
the reappearance of the malfunction.
YAD4E270
SSANGYONG Y200