Mitsubishi Lancer Evolution IX. Manual — part 596
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-67
STEP 8. Check the harness between ABS-ECU
connector B-118 terminal No.25 and longitudinal
G-sensor connector D-38 terminal No.2.
Check the output line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the wiring harness.
AC311020
Harness side
B-118
(B)
AB
Connector: B-118
<LH drive vehicles>
<RH drive vehicles>
B-118
(GR)
B-118
AC311048
<LH drive vehicles>
Sensor side
D-38 (B)
AB
Connector: D-38
<RH drive vehicles>
D-38 (B)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-68
Code No.56 Lateral G-sensor system (open circuit or short circuit)
IGNITION
SWITCH (IG2)
ABS-ECU
4WD-ECU
G-SENSOR
(LATERAL)
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
G-sensor (lateral) system circuit <LH drive vehicles>
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-69
OPERATION
The 4WD-ECU receives the acceleration level of the
vehicle in the right/left direction from the lateral G
sensor.
DIAGNOSIS CODE SET CONDITIONS
Code No.56 is set when the output signal of the lat-
eral G sensor is below 0.5 V or above 4.5 V.
PROBABLE CAUSES
• Malfunction of the lateral G-sensor
• Damaged harness wires and connectors
• Malfunction of the ABS-EC
• Malfunction of the 4WD-ECU
DIAGNOSIS
STEP 1. M.U.T.-II/III data list
Item 15: Lateral G-sensor voltage (Refer to data list
reference table
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
).
NO :
Go to Step 2.
IGNITION
SWITCH (IG2)
ABS-ECU
4WD-ECU
G-SENSOR
(LATERAL)
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
G-sensor (lateral) system circuit <RH drive vehicles>
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-70
STEP 2. Measure the voltage at lateral G-sensor
connector D-37.
(1) Disconnect the lateral G-sensor connector, and
measure the voltage between terminal No.1 and
earth.
(2) Turn the ignition switch to the ON position.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 3.
STEP 3. Connector check: C-211, C-214 J/B
connector, D-37 lateral G-sensor connector.
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
AC311048
<LH drive vehicles>
Sensor side
D-37 (B)
AC
Connector: D-37
<RH drive vehicles>
D-37 (B)
AC310448
AW
Connector: C-211, C-214 <LH drive vehicles>
Junction block (front view)
C-214
C-211
C-211
C-214
AC310458
AS
Connector: C-211,
C-214 <RH drive vehicles>
C-214
C-211
C-214
Junction block (front view)
C-211
AC311048
<LH drive vehicles>
Sensor side
D-37 (B)
AC
Connector: D-37
<RH drive vehicles>
D-37 (B)
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