Geely Diagnosis Flow. Manual part — 89

353

No. 257 Reversing radar can’t work while reversing

Malfunction Cause

Solution

Failure of switch for
reversing light

Replace reversing switch;

Failure of sensor of
reversing radar

Check, repair or replace reversing sensor;

Poor contact between
harness and controller

2) Check if connection between body harness and controller is reliable;
if the connection is normal, slight vibration should be touched by hand
on sensor. If not, check if the voltage of power supply for controller
harness is normal.

Poor contact between
harness and display

3) Check if connection between body harness and controller is reliable;
if the connection is normal, all LEDs will be on for about 1s when power
is on. If not, check if the voltage of power supply for controller harness is
normal.

Broken connecting
harness between
controller and display

4) If display works normally when power is on and slight vibration has
been touched on sensor connected to controller when reversing, but no
reversing data are showed on display, the connection between display
and controller should be checked for correct conducting; the break and
short circuit test may be conducted with multi-meter.

No display or
alarm of
reversing radar
while reversing

Broken reversing radar
controller or display

5) After inspections stated above, if there is still fault, it can be
determined that controller or display is broken. External power supply
mode can be used to check and determine the parts to be replaced.

Reversing radar can’t work

Check and

Failure of switch for reversing light

Failure of sensor of reversing radar

Check and

repair

Poor contact between harness and display

Broken connecting harness
between controller and display

Broken reversing radar controller or
display

Checking and

Check and repair

Replace

Normal

Abnormal

Normal

Normal

Normal

Abnormal

Abnormal

Abnormal

Abnormal

354

No. 258 Wrong information from the reversing radar

Malfunction Cause

Solution

1) Sensor is installed
incorrectly;

1) Failed sensor is determined according to direction indicators of display
(When obstacle is detected by two left sensors, left indicator is on; and right
indicator is on per contra; when obstacle is detected by two middle sensors,
both left and indicators are on.). Please adjust sensor promptly if inclined
installation of sensor is inspected.

2) Broken harness for
sensor connecting

2) The connected harness between sensors and controller should be checked
for short circuit or break with multi-meter.

Figures which don’t
change according
to the distance of
obstacle are
showed on display
when reversing.

3) broken sensor or
controller

3) After inspections stated above, if there is still fault, it can be determined that
controller or sensors are broken. Corresponding sensor can be replaced by
good one, if there is still fault, then it can be determined that controller is
broken.

Wrong information from

Adjust

Abnormal installation for sensor

Short-circuit or break f connecting harness
between controller and sensor

Check, repair or replace

Broken sensor or controller

Replace

Normal

Abnormal

Normal

Short-circuit or break

Broken

355

No. 259 Sunroof can’t move, including malfunction of automatic closing and anti-nip

Malfunction Cause

Solution

Broken fuse

Check if fuse is burnt-out; if so, replace it;

Poor contact of switch

Check switch for poor contact with multi-meter; if so, replace the switch;

Disordered memory for
control module

Check if the sunroof has functions such as automatic shutting and
jam-preventing; if not, power-off the sunroof, and power-on again after 30 s to
reset;

Malfunction of control
module

Check control module for burn-out; if so, the control module should be replace;

Reverse connection

Connect the harness again;

Sunroof can’t
move, including
malfunction of
automatic closing
and anti-nip

Malfunction of motor

Check motor for normal working; if it’s abnormal, replace the motor;

Sunroof in poor
operation

Fuse burnt

Change fuse

Disordered memory for control
module

Poor contact of switch

Replace switch

Power-off the sunroof, and power-on
again after 30 s to reset

Control module burnt

Replace control module

Malfunction of motor

Replace motor

Normal

Burnt

Normal

Normal

Normal

Broken

Burnt

Burnt

356

No. 260 Abnormal sound and vibration of sunroof while operating

Malfunction Cause

Solution

Obstacle or blocking of sliding
groove

Check sliding groove for obstacle; if so, clear it and lubricate the sliding
groove;

Broken moving mechanism

Dismantle the glass and slide and check moving mechanism manually for
damage; if so, the moving mechanism should be replaced;

Internal malfunction of motor

Replace sunroof and motor assembly;

Abnormal sound
and vibration of
sunroof while
operating

Distorted window frame

Replace sunroof and motor assembly;

Clearing impurity and lubricating

Impurity or blocking of sliding
groove

Broken or blocking moving
mechanism

Replace moving
mechanism

Internal malfunction of motor

Replace sunroof and
motor assembly

Distorted window frame

Replace sunroof and motor
assembly;

Abnormal sound and vibration of sunroof
while operating

Normal

Normal

Normal

With impurity

Broken

Over-low

Distorted