2008 GEELY MK Workshop Manual

(1) Inspection of rotor winding
a. Check resistance value of rotor winding
Set multimeter on R x 1 position, so two meter pens may
contact with two slip rings of rotor.
Standard: 2. 7 - 3. 1 ohm
b. Rotor bow inspection:
Standard: radial wobble is less than 0. 5 mm
If abnormal, correct or replace rotor.
(2) Stator winding inspection
a. Winding resistance value inspection
Set multimeter to R x 1 position, connect two meter pens
with any two leads of armature winding respectively. They
should be powered on, if resistance is infinitely great, there
is open circuit.
b. Winding earth inspection
Set multimeter on R x 1 position, connect a meter pen
with any lead of armature winding respectively, contact
one meter pen with stator core, if resistance is infinitely
great, it shows that armature winding insulation is good.
Otherwise repair or replace.Automobile Starting, Power Supply System -Charging system5-6IV. Alternator assembly replacement (MR479Q, MR479QA, MR481QA)1.Removel of Alternator
(1) Disconnect generator connector
(2) Loosen bolts A, B, C
(3) Loosen V-belt, remove generator.
2. Install generator assembly
Torque:
M 10 x 1.25 bolt 15 N.m
Tension adjustment of V-belt:
Deflection is about 10mm when belt middle part bears pressure of about 50N.Rotor winding inspection
Armature winding earth inspection

Chapter 2 Combination Instrument SystemSection 1 Wiring diagram of Combination Instrument and
Location of Multi-pin Plug-in Terminal1. Schematic circuit diagram of combination instrument (see the figure)
2. Distribution of digital combination instrument plug-in unit terminalsCombination Instrument System -Wiring diagram of Combination Instrument and Location of Multi-pin Plug-in Terminal5-7combination instrument
combination instrument
combination instrument

Combination Instrument System -Wiring diagram of Combination Instrument and Location of Multi-pin Plug-in Terminal5-8Please Refer to "MK WIRING DIAGRAM"Wiring diagram of Combination Instrument

3. Definition of multi-pin plug-in unit terminal
1. Prompt:
R- red Bl- blue Y - yellow B- black P- pink G- green W- white
O- orange Gr - gray Br- brown V- purple Lg- olive drab
The first letter indicates primary color
The second letter indicates stripe colorTerminal
number1 MIL C 10 NA
2 Engine oil pressure switch YG 1 P
3 Brake fluid GR 2 R
4 Park G 3 N
5 Right turn light GB 4 D
6NA 52
7 EBD 6 L
8 Charge WR 7
9NA 8NA
10 NA 9 Sidelight GW
11 Safety belt YR 10 Start BR
12 NA 11 B+
13 Engine GY 12IG ( + ) Y
14 Safety gasbag RY 13 GND
15 NA 14 NA
16 IG ( + ) 15Speed sensor earthing B
1 NA 16 Speed signal input YR
2 Left turn light GW 17 Speed sensor power supply RY
3 High beam (+) RB 18 Key (ODO/TRIP) G
4 High beam (-) RW 19 Key (adjust brightness) YG
5 Foglight Gr 20 Key COM B
6 Rear defrost YB 21 Fuel gauge V
7 NA 22 ABS R
8 NA 23 Tachometer BBL
9 Door-lock warning lamp RBL 24 Coolant temperature gauge YWA
BCCombination Instrument System -Wiring diagram of Combination Instrument and Location of Multi-pin Plug-in Terminal5-9Definition of terminalConductor
ColorTerminal
numberDefinition of terminalConductor
Color

Serial No. Symptom
1 The whole combination meter does not work
2 Speedometer fault
3 Tachometer fault
4 Water temperature gauge fault
5 Fuel gauge fault
6 Odometer fault
7 Instrument illumination fault
8 Instrument warning light fault
Tester connection Condition Standard condition
C13 - ground Normal ONSection 2 Malfunction Symptom Table and TroubleshootingI. Symptom table The table below lists the typical malfunction symptoms of the combination meter. These malfunctions can be
troubleshot step by step in the section of the malfunction diagnosis.Tester connection Conditions Standard condition
C 12- ground Turn ignition switch to ON position 10-14 VCombination Instrument System -Malfunction Symptom Table and Troubleshooting5-10II. Specific troubleshooting steps The entire combination instrument does not work (1) Check safety wire (refer to schematic diagram of
combination instrument)
a. Check GAUGE (10 A) safety wire in fuse box of instrument desk is on
b. Check AM 1 (30 A) safety wire in fuse box of engine room is on
c. Check MAIN (80 A) safety wire in fuse box is on
Result and measures: if there is any blowout, replace with a safety wire of the same capacity
(2) Check team whole instrument socket connector
a. Inspect continuity
Disconnect connector from combination instrument assy.
Check connection between terminals
Standard:
b. Check voltage
Disconnect connector from combination instrument assy.
Turn ignition switch to ON
Check voltage between terminals
Standard:

c.Check voltage between terminals
Standard:Rotating wheel 7.5-9V
Below 0.5V0Voltage changes alternativelyCombination Instrument System -Malfunction Symptom Table and Troubleshooting5-11 Result and measures:
Normal, replace combination instrument assy.
Abnormal, repair or replace wiring harness or connector
2. Speedometer fails
Check
(1) Check combination instrument assy.
a. Remove combination instrument assy. , keep connection of connector.
b. Check on state
Check connection between terminals
Standard:Tester connection Conditions Standard condition
C 17- ground Turn ignition switch to ON position 7. 5-9V
Result and measures:
Abnormal, go to (2) Check combination instrument assy. speed input signal
Normal, go to (3) Check combination instrument assy.
(2) Check combination instrument assy. speed input signal
a. Check voltage
Prop up two front wheels
Push transmission lever to neutral position
Turn on ignition switch
turn front wheel slowly, measure the voltage between terminal C15 and terminal C16
Standard voltage is shown in the figure below:
Result and measures:
Normal, replace combination instrument assy.
Abnormal, check speed sensorTester connection Condition Standard condition
C 15-ground Normal ON

Check voltage between terminals
Standard:7.5-9V
0Voltage changes alternatively5-12 b. Check speed sensor
Check on state
Check connection between terminals
Standard:Tester connection Conditions Standard condition
3- ground Turn ignition switch to ON position 7. 5-9VTester connection Condition Standard condition
2- ground Normal ON Result and measures:
Abnormal, repair or replace wiring harness or connector
Normal, check speed sensor output signal
c. Check speed sensor output signal
Check voltage
Prop up two front wheels
Push transmission lever to neutral position
Turn on ignition switch
Turn front wheel slowly, measure the voltage between terminal 1 and terminal 2
Standard voltage is shown in the figure below:
Rotating wheel Below 0.5V
Result and measures:
Normal, repair or replace wiring harness or connector
Abnormal, replace speed sensor
(3) Check combination instrument assy.
a. Remove combination instrument assy. , disconnect connector.
b. Check on status
Check connection between terminals
Standard:
Tester connection Condition Standard condition
C 13- ground Normal ONCombination Instrument System -Malfunction Symptom Table and Troubleshooting

5-13 c. Check voltage between terminals
Standard:Tester connectionConditions Standard condition
C 12- ground Turn ignition switch to ON position 7. 5-9V
Result and measures:
Abnormal, repair or replace wiring harness or connector
Normal, replace combination instrument assy.
3. Tachometer fails
Checkout procedure
(1) Check combination instrument assy. rotating speed input
signal
a. Remove combination instrument assy. , keep connection of
connector.
b. Connect oscillograph to terminal C23 and ground.
c. Start up engine
d. Check signal waveform
Standard:
Display correct waveform
Result and measures:
Normal, check and replace combination instrument assy.
Abnormal, check engine ECU rotating speed output signal
(2) Check engine ECU rotating speed output signal
a. Remove engine ECU ware, keep connection of connector.
b. Connect oscillograph to terminal ECU 8# pin and ground.
c. Start up engine
d. Check signal waveform
Standard:
Display correct waveform
Result and measures:
Normal, repair or replace wiring harness or connector
Abnormal, check revolution speed transducer and engine
control system
4. Water thermometer fails
Circuit diagramCombination Instrument System -Malfunction Symptom Table and Troubleshooting combination instrument assy
combination instrument assy engine ECU
coolant Temperature SensorEngine Speed Signal
coolant Temperature Signal