Tester connection Conditions Standard state
C(60°C)164.5±5 ohm
C 24- ground 1/2C(90°C)56±3 ohm
H(115°C)28.7±2 ohmConditions Standard state
C(60°C)164.5±5 ohm
1/2C(90°C)56±3 ohm
H(115°C)28.7±2 ohm5-14 (1) Use diagnostic instrument to read engine water temperature value
a. Connect diagnostic instrument to diagnostic interface
b. Turn on ignition switch
c. Read water temperature value displayed on diagnostic instrument
Standard: the same as actual engine cooling water temperature
Result and measures:
Normal, water thermometer does not fail
Abnormal, check combination instrument assy.
(2) 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 water temperature sensor
b. Check water temperature sensor
Remove water temperature sensor and put it in thermostat.
Adjust temperature of thermostat and measure resistance value of water temperature sensor
Standard:
Result and measures:
Normal, repair or replace wiring harness and connector
Abnormal, replace water temperature sensor
5. Fuel gauge fails
Circuit diagramCombination Instrument System -Malfunction Symptom Table and Troubleshooting combination instrument assy
Fuel Sensor
Fuel Signal
Analog instrument (Km/h)
Instrument indication Displayed value of detector
20 17-23
40 35-40
60 55-60
80 75-80
100 95-100
120 114-120
140 133-140
160 152-160
180 171-180
Tachometer (r/min) Hand revolution counter (r/min)
800 740-860
1000900-1100
20001850-2150
30002800-3200
40003800-4200
50004800-5200
60005750-6250 Note:
Insufficient or too high tire pressure will increase error.
2. Check input signal
(1) Connect positive pole (+) of voltmeter with terminal C 16, connect negative pole (-) with terminal C15.
(2) When vehicle runs at 10km/h, check the voltage between terminal C15 and C16 of combination instrument
assy.
Standard: 7 high low level fluctuation waveforms per second.
Note:
To check, keep ignition switch in ON position, connector in on state
3. Check tachometer
Check service condition
Start up engine, use hand revolution counter for comparison.
Displayed value of hand revolution counter and indicated value of tachometer are shown in the table on
next page.
Analog instrumentIII. Inspection on vehicle1. Use speedometer detector to check indication error permitted by speedometer, check odometer service
condition.5-18Combination Instrument System -Malfunction Symptom Table and Troubleshooting
Note:
To measure, disconnect the connector.
5. Check water thermometer
(1) Check resistance
When water thermometer indicates water temperature to red area, check the resistance between C24
terminal and C13 terminal on combination instrument connector.
Standard 4. Check fuel gauge
(1) Check resistance
Check resistance between C21 terminal and C13 terminal on combination instrument connector.
Standard:5-19Standard indication
E
Reminder point
1/2F
FResistance (ohm)
104-116
90-100
29-35
1-5
Standard indication
C
1/2H
Alarm point
HResistance (ohm)
159. 5-169. 5
53-59
26. 7-30. 7
20-24
Note:
To measure, disconnect the connector.
6. Check water temperature warning lamp
(1) Disconnect water temperature sensor connector.
(2) Turn ignition switch to ON, water temperature warning lamp should go out.
(3) Ground instrument connector C24 terminal, water temperature warning lamp should illuminate.
7. Check engine oil pressure warning lamp
Disconnect engine oil pressure transducer connector.
Turn ignition switch to ON, engine oil pressure warning lamp should go out.
Use conductor to short connector terminal to earth, engine oil low pressure warning light should illuminate.
8. Check engine oil pressure transducer
Disconnect connector from engine oil pressure transducer
Check connection between terminal and ground
Engine stall: on state
Engine running: off state.Combination Instrument System -Malfunction Symptom Table and Troubleshooting
5-209. Check park warning lamp
(1) Disconnect connector from park switch
(2) Turn ignition switch to ON, park brake warning lamp should go out.
(3) Use conductor to short connector terminal to ground, park brake warning lamp should illuminate.
10. Check park switch
(1) Disconnect connector from park switch
(2) Pull up manual brake, check whether its terminal is connected with ground
Pull up manual brake: on
Manual brake release: off
11. Brake fluid level warning lamp
(1) Disconnect connector from brake fluid level sensor
(2) Turn ignition switch to ON, brake fluid level warning lamp should go out.
(3) Use conductor to connect its connector terminal wiring harness terminals directly, brake fluid level
warning lamp should illuminate.
12. Check brake fluid level warning switch
(1) Remove tank cap
(2) Disconnect connector from tank
(3) Check whether terminals are connected.
Floater on top: off
(4) Use sucker to suck out liquid from tank
(5) Check whether terminals are connected.
Floater down: on state
(6) Pour liquid back into tank
13. Rear defrost indicator lamp
(1) Turn ignition switch to ON, and start up engine
(2) Push down defrost switch, now rear defrost indicator lamp should illuminate
(3) Turn ignition switch to OFF, rear defrost indicator lamp should go out
14. Rear foglight indicator lamp
When rear foglight illuminates, rear foglight indicator lamp should illuminate, now A5 terminal should be high
potential.
15. Safety belt warning indicator lamp
(1) Disconnect safety belt switch connector from driver side, now safety belt warning indicator lamp should
go out.
(2) Short connector terminal to ground, safety belt warning indicator lamp should illuminate.Combination Instrument System -Malfunction Symptom Table and Troubleshooting
Section 2 Audio System Connector Terminal Layout2. Connect terminal definitionAudio System -Audio System Connector Terminal Layout5-401. Connector terminal layout on wire harnessCondition
The audio system is on
The audio system is on
Ignition switch turned to ACC
Constant Status
The audio system is on
The audio system is on
Normal Status
Position lamp switch turned to ON
The audio system is on
The audio system is on
The audio system is on
The audio system is on
Normal Status
Audio system is On
Normal Status
Ignition switch ACC
The audio system is on
The audio system is on
Normal Status Function
FR+
FL+
ACC
B+
FR-
FL-
GND
Null
Mute
TAIL
RR+
RL+
RR-
Null
Null
RL-
B+
BUS
GND
ACC
Null
R-OUT
L-OUTGND(Audio Frequency)Terminal No.
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
B1
B2
B3
B4
B5
B6
C1
C2
C3
C4
C5
C6
C7
C8Wire color
Lg
WB
RY
R
LgR
W
B
V
G W
PB
YR
P
Y WStandard Voltage
Wave form is synchronized with the output sound
Wave form is synchronized with the output sound
10~14V
10~14V
Wave form is synchronized with the output sound
Wave form is synchronized with the output sound
ON
10~14V
Wave form is synchronized with the output sound
Wave form is synchronized with the output sound
Wave form is synchronized with the output sound
Wave form is synchronized with the output sound
10~14V
Pulse Signal
ON
10~14VWave form is synchronized with the output sound
Wave form is synchronized with the output soundON
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
(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