2008 GEELY MK air condition

Tester connectionConditions Standard state
E 110±6 ohm
C 21- ground 1/232.5±3 ohm
F 3±2 ohmConditions Standard state5-15 (1) Check combination instrument assy.
a. Check resistance
Remove combination instrument assy. , disconnect connector.
Check connection between terminals
Standard:
Result and measures:
Normal, replace combination instrument assy.
Abnormal, check fuel sensor
b. Check fuel sensor
Remove fuel sensor.
Adjust the height of fuel sensor and measure its resistance value.
Standard:
Result and measures:
Normal, repair or replace wiring harness and connector
Abnormal, replace fuel sensor
6. Odometer fails
Firstly check according to speedometer problem, if speedometer is normal, odometer fails, replace combina-
tion instrument assy.
7. Illuminating lamp fails
Symptom
All illuminating lamps do not illuminate
Only one illuminating lamp does not illuminateSuspected area
1. Brightness control switch
2. Wiring harness or connector
3. Combination instrument
1. Combination instrument assy.Combination Instrument System -Malfunction Symptom Table and Troubleshooting C(60°C)164.5±5 ohm
1/2C(90°C)56±3 ohm
H(115°C)28.7±2 ohm

Suspected Area
1. Wire between CD box and main unit
2. CD box
3. CD bag
4. CD PLAYER main unit
1. Wire between CD box and main unit
2. CD box
1. CD box
2. CD box installation Symptom
CD can not be taken out
Sound quality poor only when playing CD
(Volume faint)
CD sound jumpTester connection Condition Standard state
GND and vehicle earth Normal status ON
Tester connection Condition Standard state
+B and GND Normal status 10-14V
ACC and GND Ignition switch is in ACC or ON 10-14VII. Trouble shooting1. Power switch system does
not work
Circuit diagram
Abnormal, repair or replace wiring harness, connector
Normal, check and replace radio assembly (1) Check radio assembly (+ B, ACC, GND)
a. As shown in the table below, check connection between terminals in each operating condition.
Standard:
b. As shown in the table below, check voltage between terminals in each operating condition.
Standard:Fuse Box in Engine
CompantmentAudio System -Audio System Inspection5-42MAIN
60AFuse Box under
Instrument Panel

Tester connection Condition Standard state
TAIL and GND Combination switch (light switch) 10-14V2. Turn on light switch, radio backlight
does not illuminate
Circuit diagram
(1) Check radio assembly (TAIL)
As shown in the table below, check voltage between terminals in each operating condition.
Standard:
Abnormal, repair or replace wiring harness, connector
Normal, check and replace radio assembly
3. Loudspeakers is silent in all modes
Circuit diagramAudio System -Audio System Inspection5-43 lamp switch
Please Refer to "MK WIRING DIAGRAM"

(1) Check LCD Illumination
a. Turn the ignition switch to ACC
b. Turn on radio assembly
c. Turn on the position light
Standard: The LCD indicator of the radio assembly goes on
Abnormal: go to step (7)
Normal: go to the next step
(2) Control volume and adjust the volume balance
Adjust the volume and its balance of the radio assembly to find out the inaudible speaker.
If all speakers are mute, check and replace the radio assembly
If individual speaker is mute, then respectively check and replace the inaudible speaker.
(3) Tweeter assembly inspection
a. Disconnect the speaker connector
b. Check the resistance
Notice:
Do not remove the speaker during inspection.
Standard Value: 4 ohm
Abnormal: Replace tweeter speaker assembly
Normal: Check wire harness and connector
(4) Check front speaker assembly
a. Disconnect speaker connector
b. Check resistance
Standard Value: 4 ohm
Abnormal: Replace front speaker assembly
Normal: Check wire harness and connector
(5) Check rear speaker assembly
a. Disconnect speaker connector
b. Check resistance
Standard Value: 4 ohm
Abnormal: Replace rear speaker assembly
Normal: Check wire harness and connector
(6) Check wire harness and connector
Abnormal Repair or replace wire harness and connector
Normal Check and replace radio assembly
(7) Check and replace radio assembly (+B, ACC, GND)
a. Check the continuity between terminals under each operating condition as shown in the table below.
Standard:Audio System -Audio System Inspection5-44Tester connection Condition Standard Status
GND Normal ON

Tester Connection Condition Standard Status
+B - GND Normal 10~14V
ACC - GND Ignition switch ACC or ON 10~14V
Abnormal: Repair or replace wire harness and connector
Normal: Check and replace radio assembly
4. Unable to receive radio broadcast (poor reception)
(1) Check if the radio auto-research function works
Perform the radio auto-research function to see if it works
Normal: Check and replace radio assembly
Abnormal: Check the antenna for noise
(2) Check the antenna for noise
a. Turn on radio to AM with the ignition switch ACC.
b. Touch the antenna of the seated antenna assembly with the tip of the screwdriver.Check the speaker for
noise.
Standard: There is noise
Normal: Check and replace radio assembly
Abnormal: Check antenna assembly
(3) Check antenna assembly
a. Remove the antenna plug from the antenna assembly
b. Check for noise

Connect the radio assembly connector and turn the ignition switch to ACC.

Turn on the radio to AM

Insert a flat pan screwdriver or metal object similar to thin wire into the hole in the antenna coaxial
cable. Check the speaker for noise.
Standard: There is noise.
Normal: Check and replace radio assembly
Abnormal: Check and replace antenna coaxial cable sub-assembly
5. Cassette tape can not be inserted or played.
(1) Check for foreign object

Check the radio assembly and cassette recorder for foreign object or defect.
Abnormal: Clean foreign object
Normal: Check cassette tape
(2) Check cassette tape

Check if the cassette tape is used to record music or sound.
Replace the tape with another tape and re-check if it is faulty. b. Check the voltage between terminals under each operating condition as shown in the table below.
Standard:Audio System -Audio System Inspection5-45

Tester connection Condition Standard Status
GND Nomal ON
Tester Connection Condition Standard Status
+B - GND Nomal10 ~ 14V
ACC - GND Ignition switch ACC or ON10 ~ 14V b. Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Abnormal: Repair or replace wire harness and connector
Normal: Check and replace radio assembly
6. The tape doesn't eject
(1) Press "EJECT" and check the operation

Press "EJECT" of the radio assembly. Check if the tape ejects.
Standard: The tape is ejected.
Abnormal: Check and replace radio assembly
Normal: Check cassette tape
(2) Check cassette tape

Check the ejected tape for trademark peeled off or tape box distortion or other issues
Standard: There is nothing wrong with the tape
Abnormal: There is something wrong with the tape
Normal: Replace it with another tape and re-check
(3) Replace it with another tape and re-check.

Replace the faulty tape with working tape to see if the same fault will re-occur.
Standard: The fault is cleared
Normal: There is something wrong with the tape
Abnormal: Check and replace the recorder assembly (3) Replace it with another tape and re-check

Replace the faulty tape with working tape to see if the same fault will re-occur.
Standard: The function is normal
Normal: The tape is faulty
Abnormal: Check if the radio auto-research function works
(4) Check if the radio auto-research function works

Perform the radio auto-research function to see if it works
Standard: The operation works.
Normal: Check and replace radio assembly
Abnormal: Check radio assembly (+B, ACC, GND)
(5) Check the radio assembly (+B, ACC, GND)
a. Check the continuity between terminals under each operating condition as shown in the table below.
Standard:Audio System -Audio System Inspection5-46

b. Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Abnormal: Repair or replace wire harness and connector
Normal: Check and replace radio assembly
10. Power coming in, but CD player doesn't work.
(1) Press CD player OPEN to see if CD ejects.
No: CD does not eject for inspection after being inserted
Yes: Check if the right CD is inserted
(2) Check if the proper CD is inserted
a. Check if the proper CD is inserted
b. Make sure the working CD is music and it is not distorted, cracked, dirty, scratched or defected.
Standard: Working music CD
Description:
Semi-transparent CD or CD of strange shape can not be played.
Music CD recorded in PC CD-ROM and recorded CD-R can not be played.
Adapter is not needed to play 8cm CD.
Abnormal: There is something wrong with CD
Normal: Check and insert a proper CD
(3) Check and insert a proper CD
a. Check and insert a proper CD
b. Check if CD is installed in reverse order.
Standard: Not installed in reverse order
Abnormal: Install the disc correctly
Normal: Clean the disc
(4) Clean the CD

If the CD is dirty, use soft cloth to wipe the CD surface in the arrow direction.
Notice:
Do not use cleanser for normal radio or anti-static-electricity repellent to clean the CD.
Normal: Dirty CD
Abnormal: Replace it with another CD and recheck itAudio System -Audio System Inspection5-49Tester Connection Condition Standard Status
+B - GND Nomal 10~14V
ACC - GND Ignition switch ACC or ON 10~14V

Abnormal: Repair or replace wire harness and connector
Normal: Check and replace radio assembly
11. Sound quality poor only when playing CD (Volume faint)
(1) Replace it with another CD and re-check
Normal: CD failure b. Check the voltage between terminals under each operating condition as shown in the table below
Standard: (5) Replace it with another CD and re-check.

Replace the faulty CD with working CD to see if the same fault re-occurs.

Standard: The fault is cleared

Abnormal: There is something wrong with CD

Normal: Check if the radio auto-research function works
(6) Check if the radio auto-research function works

Perform the radio auto-research function

Standard: The fault is cleared.

Abnormal: Go to Step (9)

Normal: Has sudden temperature change occurred inside vehicle?
(7) Has sudden temperature change occurred inside vehicle

Check if sudden temperature change has occurred inside vehicle

Standard: Sudden temperature change has occurred inside vehicle.

Description:

Formulation of dew condensation inside the CD player is due to temperature changes. CD may not play.

Abnormal: Formulation of dew condensation due to temperature changes (Leave it for a while before using it)

Normal: Check the signal wire between the radio and disc box
(8) Check the signal wire for short circuit or open circuit.

Yes Replace the signal wire

No Replace the disc box
(9) Replace the disc box

Standard: The faulty is cleared

Normal: Box faulty

Abnormal: Check the radio assembly (+B, ACC, GND)
(10) Check the radio assembly (+B, ACC, GND)
a. Check the continuity between terminals under each operating condition as shown in the table below.
Standard:Audio System -Audio System Inspection5-50Tester connection Condition Standard Status
GND Nomal ON
Tester Connection Condition Standard Status
+B - GND Nomal 10~14V
ACC - GND Ignition switch ACC or ON 10~14V