Bendix Commercial Vehicle Systems AutoVue LDW by Bendix CVS Service Data Sheet - Manual (Page 10)

10
Table of Diagnostic Trouble Codes (DTCs), Causes and Recommended Actions
SPN FMI DTC Name Condition Found Suggested Remedial Action(s)
Action to Clear
the DTC
1705 02
The Turn
Signal Input
Remains
High
Turn signal input is
stuck at high level
for more than three
(3) seconds
• Check the wiring between the
Electronic Control Unit (ECU) and
the turn signal.
• Verify that the common wire of the
turn signal/brake lamp circuit was not
used.
• Replace any non-functioning turn
signal bulb(s).
• Test by temporarily installing a known
good turn signal flasher.
• Connect a test lamp or multi-meter
to the turn signal wires one at a time
(orange for left, white for right) and
notice the state of the test lamp or
the voltage readout on the multi-
meter. With the ignition on, test and
observe the following.
1. Readings should be off or 0v when
the turn signal is off.
2. Readings should pulse to 12V
when the turn signal is on.
3. If the signal pulses with both turn
signals, turn the signal off before
continuing.
4. Readings should be 0V when the
service brake pedal is applied.
5. Readings should be 0V when the
parking brake is disengaged.
6. Readings should be 0V when the
headlights are ON.
If the turn signal circuit does not pass
any of the above tests you must
relocate the turn signal connection.
• If no problems were found with the
wiring/bulbs, and the test with a
good signal flasher did not solve
the problem, replace the ECU and
re-test.
Turn signal input
is low for three
(3) seconds.
1705 03
The Input
Voltage is
Too High
Input voltage is above
16V
• Measure the ignition voltage. Ensure
that ignition voltage is not greater
than 16 VDC. Check the vehicle
battery and associated components.
• Inspect for damaged wiring,
damaged or corroded connectors
and loose connections. Check the
wiring between the ignition and the
ECU.
• If no problems were found during the
checks above, replace the ECU and
re-test.
Input voltage is
below 16V.
FIGURE 9 - TABLE OF DIAGNOSTIC TROUBLE CODES (PAGES 7-11)