2004 MITSUBISHI LANCER EVOLUTION VIII brake sensor

SECTION 22
MANUAL TRANSMISSION
CONTENTS
General........................................................1 Troubleshooting .........................................1
General
The following troubleshooting items have been changed along with the changes to the wiring. Troubleshooting points other than
those mentioned below remain unchanged, and are the same as on the existing Lancer Evolution VII/VIII.
Troubleshooting
1. Diagnosis Code ListMANUAL TRANSMISSION – GENERAL, TROUBLESHOOTING
221
Diagnosis code no.Diagnosis itemPage ref.
12Power supply voltage (valve power supply) systemBroken wire or short222
21Vehicle wheel speed sensor system Broken wire or short223
22Vehicle wheel speed sensor system Broken wire or short223
23Vehicle wheel speed sensor system Broken wire or short223
24Vehicle wheel speed sensor system Broken wire or short223
25Abnormal diameter tyres 225
26Vehicle wheel speed sensor system (output signal abnormal) 226
41TPS systemBroken wire or earthing227
42Short227
45Pressure sensor systemBroken wire or earthing228
46Earth wire broken228
47Abnormal power supply229
51Longitudinal G sensor systemBroken wire or short2210
52Sensor malfunction2211
56Lateral G sensor systemBroken wire or short2212
57Sensor malfunction2213
61Stop lamp switch systemBroken wire2214
62ACD mode switch systemSticking2215
63Parking brake switch systemShort or failing to return2216
65ABS monitor system Broken wire or ABS failure2217
74Proportional control valve systemBroken wire or short2218
81Electrical pump relay systemBroken wire or short2218

MANUAL TRANSMISSION TROUBLESHOOTING2211
Code No.52 Longitudinal G sensor systemAssumed cause of concern
At 10kph or over, with ABS and brakes not applied, code No.
52 is output in cases where G sensor indicates higher than
specified value.• Harness, connector malfunction
• Longitudinal G sensor malfunction
• ABSECU malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.14 longitudinal sensor voltage
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Longitudinal G sensor check (refer to P.2232)
*2
NG > replace
Measurement at C38 4WDECU connector
• ECU terminal voltage measurement
• Ignition switch: ON
• Voltage between 23 – earth
OK:2.4 – 2.6V (when vehicle is standing on flat
ground)
Connector check:C38
NG > repair
MUTII/III Service data
• No.14 longitudinal sensor voltage
OK:P.2232 Refer to (Service Data List)*2
NG > Replace 4WDECU
OK > Intermittent malfunction
Connector check:C38, D29, C20, B109
C38, C20, D29 fitted vehicles> NG > repair
Check harness between longitudinal G sensor – 4WD
ECU
•Check to see if output wire is broken, earth, or
damaged
Check harness between longitudinal G sensor – ABS
ECU

MUTII/III Service data
• No.14 longitudinal G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or replace 4WDECU
OK > intermittent malfunction
NG
OK
OK
OK
NG
OK
OK

MANUAL TRANSMISSION TROUBLESHOOTING2213
Code No.57 Lateral G sensor systemAssumed cause of concern
At 10kph or over, with ABS and brakes not applied, code No.
57 is output in cases where G sensor indicates higher than
specified value.• Harness, connector malfunction
• Longitudinal G sensor malfunction
• ABSECU malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.15 longitudinal sensor voltage
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Lateral G sensor check (refer to P.2220)
*2
NG > replace
Measurement at C38 4WDECU connector
•ECU terminal voltage measurement
• Ignition switch: ON
•Voltage between 11 – earth
OK:2.4 – 2.6V (when vehicle is standing on flat
ground)
Connector check:C38
NG > repair
MUTII/III Service data
•No.15 lateral sensor voltage
OK:P.2232 Refer to (Service Data List)*2
NG > Replace 4WDECU
OK > Intermittent malfunction
Connector check:C38, D31, C20, B109
C38, C20, D31 fitted vehicles> NG > repair
Check harness between lateral G sensor – 4WDECU
•Check to see if output wire is broken, earth, or
damaged
Check harness between lateral G sensor – ABSECU
• Check to see if output wire earth or damaged
NG > repair
MUTII/III Service data
•No.15 lateral G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or replace 4WDECU
OK > intermittent malfunction
NG
NG
OK
OK
OK
OK
OK

CIRCUIT DIAGRAMS - SPECIAL EQUIPMENT3-41
Ignition switch (IG2)
Front / Rear
G sensorLateral G
sensor
Brake warning
light
Parking brake
switch