Mitsubishi Galant. Manual — part 661

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-39

Inspection Procedure C-1: Central door locking system: Central door locking system does not
operate.

Door Lock Actuator Circuit <1999 Models>

AC004202

SWS DIAGNOSIS

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-40

AC004203

Door Lock ActuatorCircuit <2000 Models>

AC002299 AC

FUSIBLE LINK (1)

AC003079AH

CONNECTOR
BLOCK (LH)

CONNECTORS: C-66, C-67, C-68

C-66

C-67

C-68

SWS DIAGNOSIS

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-41

CIRCUIT OPERATE

•

The ETACS-ECU operates the door lock
actuators through its dedicated relay (integrated
in the ETACS-ECU).

•

The ETACS-ECU drives the relay to lock or
unlock the door if the requirements are satisfied.

TECHNICAL DESCRIPTION (COMMENT)
The power supply circuit, the circuit shared by door
lock actuators, or the ETACS-ECU may be defective.

TROUBLESHOOTING HINTS

•

Malfunction of the ETACS-ECU

•

Damaged harness wires or connectors

DIAGNOSIS

Required Special Tool:

•

MB991223: Harness Set

AC003415 AE

CONNECTORS: C-71, C-72

CONNECTOR
BLOCK (RH)

C-71

C-72

AC003082 AG

CONNECTORS: C-77, C-78

JUNCTION BLOCK
(FRONT VIEW)

C-77

C-78

AC003080 AE

CONNECTORS: C-84, C-85, C-86

C-84

JUNCTION BLOCK
(REAR VIEW)

C-86

C-85

AC003084 AB

D-19

CONNECTORS: D-07, D-19

D-07

AC003086AG

DOOR

CONNECTORS: E-07, E-10, E-11, E-15

E-15

E-07

E-11

E-10

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-42

STEP 1. Check the ETACS-ECU power supply circuit
(fusible link (1) ) at the ETACS- ECU connector C-86.
(1)Disconnect the ETACS-ECU connector C-86 and measure

at the junction block side.

(2)Measure the voltage between terminal 16 and ground.

Q: Is the voltage approximately 12 volts (battery positive

voltage)?
YES : Go to Step 4.
NO : Go to Step 2.

STEP 2. Check the junction block connector C-86 for
damage.
Q: Is junction block connector C-86 in good condition?

YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. The central door

locking system should work normally.

AC003567 AB

CONNECTOR C-86
(JUNCTION BLOCK SIDE)

AC003080 AD

JUNCTION BLOCK
(REAR VIEW)

CONNECTOR: C-86