DongFeng S30 - Page 228

Sunroof
15-8
level (0V voltage). If so:
 If the sound of relay actuation is heard but sunroof
doesn’t move after a long time, ECU or sunroof
mechanism fault is considered.
 If no sound of relay actuation is heard, ECU fault is
considered. Replace ECU.
Mechanism failure
1. If sunroof is auto on during movement again and
again,
 Sunroof is subject to great resistance. Please clean
dust or apply grease to it:
 Sunroof system is deformed. Turn ignition key to
effective position and press and hold Slide or Tilt
button to close sunroof.
Igniter single fail
1. Check whether the voltage of 4
th
pin of ECU is at low
level (0V voltage). If not:
 Check whether igniter is in effective position;
 Check the status signal circuit and harness of igniter.
Sunroof is not
auto-off in place
after turning
ignition key to OFF
position
Internal data loss
1. The internal travel data of sunroof is lost. After
switching igniter to working position:
 Execute “Initialize Operation”.
Sunroof is
operational even if
ignition key is not
in effective
position
Igniter single fail
1. Check whether the voltage of 4
th
pin of ECU is at low
level (0V voltage). If not:
 Check the status signal circuit and harness of igniter.
When sunroof is in
tilt side area,
sunroof is auto-off
immediately after
ignition key sparks
Short sunroof
auto-off time
1. Check whether the voltage of 5
th
or 6
th
pin of ECU is
in the range of effective working voltage (battery
voltage). If not:
 Make sure that its voltage is in the range of effective
working voltage;
 Return igniter to ACC position to tilt sunroof and then
switch igniter to OFF position.
When shortly
pressing Slide
button and/or
shortly pressing
Tilt button to close
sunroof, sunroof
fails to auto return
in case of
obstruction
Anti-squeeze
function fault
1. Check whether the voltage of 5
th
or 6
th
pin of ECU is
at high level (battery voltage). If not:
 Check the signal circuit of Slide and/or Tilt operation;
 Check Slide and Tilt buttons;
 ECU fault, replace ECU.
When shortly
pressing Slide
button and/or
shortly pressing
Tilt button to open
or tilt sunroof,
sunroof stop in
case of no
obstruction
Large mechanism
1. Sunroof is subject to great resistance:
 Please clean dust or apply grease to it;