Mitsubishi Galant (2004+). Manual - part 1477

RADIO WITH CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-151

STEP 8. Measure the resistance at clock spring terminal.
(1) Remove the clock spring (Refer to GROUP 52B, Air Bag 

Module(s) and Clock Spring 

P.52B-368

).

(2) Measure the resistance at clock spring connectors C-303 

and C-306.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 9.
NO :  Replace the clock spring.

Circuit to be 
measured

Connector 
(terminal) to be 
checked

SPECIFIED 
CONDITION

Power supply 
circuit

C-303 (terminal 
5) 

− C-306 

(terminal 2)

Less than 2 
ohms

Ground circuit

C-303 (terminal 
4) 

− C-306 

(terminal 3)

less than 2 
ohms

AC305236

CONNECTORS: C-303, C-306

C-306

C-303 (GR)

C-303

C-306

AC

1 2 3

5

4

6

4

1 2 3

5

AC211682

1 2 3

5

4

6

4

1 2 3

5

C-303

C-306

C-303

C-306

AB

POWER SUPPLY 
CIRCUIT CHECK

GROUND CIRCUIT
CHECK

RADIO WITH CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-152

STEP 9. Check the clock spring connector C-303 and 
remote controlled radio switch (RH) connector C-301 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are clock spring connector C-303 and remote controlled 

radio switch (RH) connector C-301 in good condition?
YES : Go to step 10.
NO :  Repair or replace the component(s). Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. The 

remote controlled radio switch should work normally.

STEP 10. Check the wiring harness between clock spring 
connector C-303 (terminals 4 and 5) and remote controlled 
radio switch (RH) connector C-301 (terminals 1 and 2).
Q: Is the wiring harness between clock spring connector 

C-303 (terminals 4 and 5) and remote controlled radio 
switch (RH) connector C-301 (terminals 1 and 2) in good 
condition?
YES : Go to Step 11.
NO :  Repair the wiring harness. The remote controlled 

radio switch should work normally.

AC305236

CONNECTORS: C-301, C-303

C-301 (B)

C-303 (GR)

C-301

C-303

HARNESS SIDE

AD

AC305236

CONNECTORS: C-301, C-303

C-301 (B)

C-303 (GR)

C-301

C-303

HARNESS SIDE

AD

RADIO WITH CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-153

STEP 11. Measure the resistance at remote controlled 
radio switch (RH).
(1) Remove the airbag module assembly (Refer to GROUP 

52B, Air Bag Module(s) and Clock Spring 

P.52B-368

).

(2) Measure the resistance by operating the remote controlled 

radio switch (RH) in each position.

Q: Are the resistance at the right remote controlled radio 

switch normal?
YES : Replace the radio, CD player and CD changer.
NO :  Replace the remote controlled radio switch (RH).

SWITCH POSITION MEASUREMENT VALUE
No push

Approximately 24.0 k

Ω

Upper

Approximately 6.8 k

Ω

Center

Less than 2 ohms

Lower

Approximately 15.0 k

Ω

AC211680AB

RADIO WITH CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-154

INSPECTION PROCEDURE 3: The system does not recognize the remote controlled radio switch (RH) 
only. <Vehicles with Audio Amplifier>

.

CIRCUIT OPERATION
Refer to Inspection Procedure 2 

P.54A-145

.

.

TECHNICAL DESCRIPTION (COMMENT)
Refer to Inspection Procedure 2 

P.54A-145

.

.

TROUBLESHOOTING HINTS
Refer to Inspection Procedure 2 

P.54A-145

.

DIAGNOSIS

Required Special Tool:

• MB991223: Harness set

STEP 1. Measure the resistance at remote controlled radio 
switch (RH).
(1) Remove the airbag module assembly (Refer to GROUP 

52B, Air Bag Module(s) and Clock Spring 

P.52B-368

).

(2) Measure the resistance by operating the remote controlled 

radio switch (RH) in each position.

Q: Are the resistance at the right remote controlled radio 

switch normal?
YES : Go to Step 2.
NO :  Replace the remote controlled radio switch (RH).

SWITCH POSITION MEASUREMENT VALUE

No push

Approximately 24.0 k

Ω

Upper

Approximately 6.8 k

Ω

Center

Less than 2 ohms

Lower

Approximately 15.0 k

Ω

AC211691AB