Mitsubishi L200. Manual — part 754
STEERING WHEEL AUDIO REMOTE CONTROL SWITCH
CHASSIS ELECTRICAL
54A-383
SPECIAL TOOLS
M1544000600652
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING
M1544004800551
Refer to GROUP 00
− Contents of troubleshooting .
TROUBLE SYMPTOM CHART
M1544004901863
Tool
Number
Name
Use
MB991223
a. MB991219
b. MB991220
c. MB991221
d. MB991222
Harness set
a. Check harness
b. LED harness
c. LED harness
adapter
d. Probe
Continuity check and voltage
measurement at harness wire or
connector
a. For checking connector pin
contact pressure
b. For checking power supply circuit
c. For checking power supply circuit
d. For connecting a locally sourced
tester
MB992006
Extra fine probe
Continuity check and voltage
measurement at harness wire or
connector
MB991223
a
d
c
b
DO NOT USE
BA
MB992006
Inspection
Procedure
No.
Trouble symptom
Reference
page
1
Steering wheel audio remote control switch does not
function.
<Vehicle with radio
and CD player>
Steering wheel audio remote control switch does not
function.
<Vehicle with MMCS>
2
Steering wheel audio remote control switch illumination does not come on.
STEERING WHEEL AUDIO REMOTE CONTROL SWITCH
CHASSIS ELECTRICAL
54A-384
SYMPTOM PROCEDURES
Inspection Procedure 1: Steering wheel audio remote control switch does not function. <Vehicle with
radio and CD player>
TECHNICAL DESCRIPTION (COMMENT)
The power supply circuit to the steering wheel audio
remote control switch, the steering wheel audio
remote control switch, the radio and CD player, or
the clock spring may be defective.
Steering Wheel Audio Remote Control Switch Circuit
RADIO AND CD PLAYER
CLOCK
SPRING
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-385
TROUBLESHOOTING HINTS
• Malfunction of steering wheel audio remote con-
trol switch
• Malfunctions of radio and CD player
• Malfunction of the clock spring
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Connector check: C-311 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. Check the steering wheel audio remote
control switch.
Check the continuity of the steering wheel audio
remote control switch. (Refer to
).
Q: Is the hood switch in good condition?
YES :
Go to Step 3.
NO :
Replace the steering wheel audio remote
control switch.
STEP 3. Connector check: C-310 and C-306 clock
spring connector
Q: Is the hood switch in good condition?
YES :
Go to Step 4.
NO :
Repair the defective connector.
STEP 4. Check the clock spring.
Check whether the clock spring is in good condition
(Refer to GROUP 52B
− Air bag module and clock
spring ).
• Check if continuity exists between C-310 clock
spring connector terminal No.5 and C-306 clock
spring connector terminal No.2.
• Check if continuity exists between C-310 clock
spring connector terminal No.4 and C-306 clock
spring connector terminal No.3.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Replace the clock spring.
AC903858 AF
Connector: C-311 <LHD>
Harness side
C-311 (R)
AC903869 AF
Connector: C-311 <RHD>
Harness side
C-311 (R)
AC903858AG
Connectors: C-306, C-310 <LHD>
Harness side
C-306 (B)
C-310
C-306
Harness side
C-310
AC903869AG
Connectors: C-306, C-310 <RHD>
Harness side
C-306 (B)
C-310
C-306
Harness side
C-310
STEERING WHEEL AUDIO REMOTE CONTROL SWITCH
CHASSIS ELECTRICAL
54A-386
STEP 5. Connector check: C-126 radio and CD
player connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
STEP 6. Check the wiring harness between C-126
radio and CD player connector terminal No.31, 42
and C-306 clock spring connector terminal No.2,
3.
• Check the communication lines for open and
short circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
AC903856BT
Harness side
Connector: C-126 <LHD>
AC903868
CP
Connector: C-126 <RHD>
Harness side
AC903856BT
Harness side
Connector: C-126 <LHD>
AC903868
CP
Connector: C-126 <RHD>
Harness side
AC903858AH
Connector: C-306 <LHD>
Harness side
C-306 (B)
AC903869AH
Connector: C-306 <RHD>
Harness side
C-306 (B)
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