Mitsubishi Lancer (4A9 engine). Manual — part 193

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-434

STEP 7. Connector check: C-202 steering wheel
audio remote control switch connector

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Repair the defective connector.

STEP 8. Check the wiring harness between C-213
steering wheel audio remote control switch
connector terminal No.2, 4 and C-202 clock
spring connector terminal No.5, 4.

• Check the communication lines for open circuit or

short circuit.

Q: Is the check result normal?

YES :

Go to Step 9.

NO :

Repair the wiring harness.

STEP 9. Retest the system
Check whether you can operate the multivision dis-
play by using the steering wheel audio remote con-
trol switch.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Replace the multivision display.

Inspection Procedure 2: Steering wheel audio remote control switch illumination does not come on.

CLOCK
SPRING

INTERFACE
CIRCUIT

COMBINATION
METER

Steering Wheel Audio Remote Control Switch Illumination Circuit

STEERING
WHEEL
AUDIO
REMOTE
CONTROL
SWITCH

Wire colour code
B : Black LG : Light green
G : Green L : Blue
W : White Y : Yellow
SB : Sky blue BR : Brown
O : Orange GR : Grey
R : Red P : Pink
V : Violet PU : Purple
SI : Silver

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-435

TECHNICAL DESCRIPTION (COMMENT)
The power supply circuit to the steering wheel audio
remote control switch, the steering wheel audio
remote control switch, the combination meter, or the
clock spring may be defective.

PROBABLE CAUSES

• Malfunction of steering wheel audio remote con-

trol switch

• Malfunctions of combination meter

• Malfunction of the clock spring

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Connector check: C-202 steering wheel
audio remote control switch connector

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the defective connector.

STEP 2. Voltage measurement at C-202 steering
wheel audio remote control switch connector.
(1) Disconnect the connector, and measure at the

wiring harness side.

(2) Turn the ignition switch to the "ACC" position, and

turn the tail lamp switch to the "ON" position.

(3) Measure the voltage between terminal No.1 and

body earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Go to Step 5.

STEP 3. Check the wiring harness between C-202
steering wheel audio remote control switch
connector terminal No.5 and body earth.

• Check the earth wire for open circuit.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the wiring harness.

STEP 4. Check the steering wheel audio remote
control switch.
Illumination check. (Refer to .)

Q: Is the check result normal?

YES :

Go to Step 11.

NO :

Replace the steering wheel voice control
switch.

STEP 5. Connector check: C-204 and C-205 clock
spring connectors

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair the defective connector.

STEP 6. Check the clock spring.
Check whether the clock spring is in good condition
(Refer to GROUP 52B

− Driver’s Air bag module and

clock spring ).

Q: Is the check result normal?

AC701093 AU

Connector: C-01 <LHD>

AC701122 BH

Connector: C-01 <RHD>

AC612708 AQ

Connectors: C-202, C-204, C-205 <LHD>

C-202 (R)

C-204

C-205

AC612716 AD

Connectors: C-202, C-204, C-205 <RHD>

C-202 (R)

C-204

C-205

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-436

YES :

Go to Step 7.

NO :

Replace the clock spring.

STEP 7. Check the wiring harness between C-202
steering wheel audio remote control switch
connector terminal No.1 and C-204 clock spring
connector terminal No.1.

• Check the power supply line open or short circuit.

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Repair the wiring harness.

STEP 8. Connector check: C-01 combination
meter connector

Q: Is the check result normal?

YES :

Go to Step 9.

NO :

Repair the defective connector.

STEP 9. Check the wiring harness between C-01
combination meter connector terminal No.23 and
C-205 clock spring connector terminal No.6.

• Check the power supply line open or short circuit.

Q: Is the check result normal?

YES :

Go to Step 10.

NO :

Repair the wiring harness.

STEP 10. Check the audio illumination.
Check whether the illumination of the audio control
panel comes on normally.

Q: Is the check result normal?

YES :

Go to Step 11.

NO :

Refer to radio and CD player Inspection
Procedure 5 "Audio illuminations does not
work normally." . and then go to Step 11.

STEP 11. Retest the system
Check whether the illumination of the steering wheel
audio remote control switch comes on normally.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Replace the steering wheel audio remote
control switch.

SERVICE DATA

M1544014100111

Refer to Radio and CD player .

REMOVAL AND INSTALLATION

M1544015600294

WARNING

•

Before removing the air bag module, refer to GROUP 52B, Service Precautions and
Driver’s, Front Passenger's Air Bag Module and Clock Spring .

•

When removing and installing the steering wheel, do not let it bump against the air bag
module.

Pre-removal operation
• Removal of driver’s air bag module (Refer to GROUP

52B, Driver’s, Front Passenger's Air Bag Module and

Clock Spring ).

Post-installation operation
• Installation of driver’s air bag module (Refer to GROUP

52B, Driver’s, Front Passenger's Air Bag Module and

Clock Spring ).

AC605239AD

1

Driver`s air bag module

Removal Step

1.

Steering wheel audio remote
control switch

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-437

STEERING WHEEL AUDIO REMOTE
CONTROL SWITCH INSPECTION

M1544015700398

STEERING WHEEL AUDIO REMOTE CONTROL
SWITCH CHECK

Use an ohmmeter to measure the resistance value
between the terminal.

ILLUMINATION CHECK

Apply the battery voltage of steering wheel audio
remote control switch connector terminal No. 1 and
5, and check if the steering wheel audio remote con-
trol switch illuminates.
NOTE: Make sure that polarity is correct.

AC605242

“VOL up” switch

“CH up”
switch

“CH down”
switch

“VOL down”
switch

“Mode” switch

AC

AC600711AC

Switch Position

Tester
Connection

Measurement
Value

No push

2

− 3

Approximately
3.1 k

Ω

2

− 4

Approximately
71 k

Ω

"Mode" switch

Approximately
270

Ω

"CH up" switch

Approximately
740

Ω

"CH down" switch

Approximately
1.3 k

Ω

"VOL up" switch

Approximately
2.1 k

Ω

"VOL down" switch

Approximately
3.1 k

Ω

AC800648AB