Mitsubishi L200. Manual — part 718
RADIO AND CD PLAYER
CHASSIS ELECTRICAL
54A-239
Inspection Procedure 2: No sound is heard. <Vehicles without audio amplifier>
CAUTION
Before replacing the radio and CD player, ensure that the power supply circuit, the earth circuit and
the communication circuit are normal.
TWEETER (RH)
RADIO AND CD PLAYER
REAR DOOR
SPEAKER (LH)
REAR DOOR
SPEAKER (RH)
FRONT DOOR
SPEAKER (RH)
FRONT DOOR
SPEAKER (LH)
TWEETER (LH)
Speaker System Circuit
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
<DOUBLE CAB>
NOTE
:LHD
:RHD
RADIO AND CD PLAYER
CHASSIS ELECTRICAL
54A-240
COMMENTS ON TROUBLE SYMPTOM
If the audio sound is not output, the radio and CD
player may have a problem. In addition, if any of the
speakers is short-circuited, the protection circuit
inside the radio and CD player disables all the
speakers to sound. Therefore, if all the speakers do
not output sound, the speaker circuit may be shorted
or the speaker may be defective.
PROBABLE CAUSES
• Malfunctions of radio and CD player
• Malfunction of speaker or tweeter
• Damaged harness wires and connectors
RADIO AND CD PLAYER
CHASSIS ELECTRICAL
54A-241
DIAGNOSIS PROCEDURE
STEP 1. Check the following connectors.
Check the following connectors:
• E-19 front door speaker (LH) connector
• E-11 front door speaker (RH) connector
• E-24 tweeter (LH) connector
• E-25 tweeter (RH) connector
• E-22 rear door speaker (LH) connector <double
cab>
• E-09 rear door speaker (RH) connector <double
cab>
Q: Are all the connectors in good condition?
YES :
Go to Step 2.
NO :
Repair the defective connector.
STEP 2. Check the speaker or tweeter.
(1) Remove the speaker or tweeter. Refer to
(2) Check that the speaker or tweeter outputs the
noise when the voltage of 5 V is applied to the
speaker or tweeter connector terminal.
Q: Do the speaker or tweeter output the noise?
YES :
Go to Step 3.
NO :
Replace the speaker or tweeter.
STEP 3. Connector check: C-125 radio and CD
player connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
AC502334AB
Harness side
Connector: E-09
AC509954AR
Harness side
Connectors: E-11, E-25
E-11
E-11
Harness side
E-25
E-25
AC509952
Connectors: E-19, E-24
AS
Harness side
Harness side
E-19
E-24
E-24
E-19
AC502333AB
Connector: E-22
Harness side
AC707572 AB
5 V
AC903856AE
Harness side
Connector: C-125 <LHD>
AC903868
AE
Harness side
Connector: C-125 <RHD>
RADIO AND CD PLAYER
CHASSIS ELECTRICAL
54A-242
STEP 4. Check the wiring harness between the
speaker or tweeter connector terminal and the
radio and CD player connector terminal.
Check the communication lines for short circuit.
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