Mitsubishi Lancer Evolution-VII Workshop Manual page 1002

22A-22
MANUAL TRANSMISSION - Troubleshooting <ACD>
Code No.52 Longitudinal G sensor system
Code No.52 is output when the G sensor has exceeded the specified value in a
state where the ABS and brake are not operating above the vehicle speed of 10
km/h.
MUT-II Data List
D No.14 Longitudinal G sensor voltage
OK: Refer to P.22A-35 (Data List Reference Table).
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
Check the longitudinal G sensor. (Refer to P.22A-21.)
NG→Replace
Measure at 4WD-ECU connector C-44.
D Measure the ECU terminal voltage.
D Ignition switch: ON
D Voltage between terminal 23 and earth
OK: 2.4 - 2.6 V (body is in horizontal state)
Check the following connectors: C-44
NG→Repair
MUT-II Data List
D No.14 Longitudinal G sensor voltage
OK: Refer to P.22A-35 (Data List Reference Table).
NG→Replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
NG
OK
OK
OK
Probable cause
D Harness or connector fault
D Longitudinal G sensor fault
D ABS-ECU fault <Vehicles with ACD and AYC>
D 4WD-ECU fault
NG
Check the following connectors:
<Vehicles with ACD and AYC> D-32, C-44, C-128, B-123
<L.H. drive vehicles with ACD> D-32, C-128, C-44
<R.H. drive vehicles with ACD> D-32, C-44
NG→Repair
Check the harness between the longitudinal G sensor and
4WD-ECU.
D Check for open circuit, ground and damage of the power
line.
Check the harness between the longitudinal G sensor and
ABS-ECU. <Vehicles with ACD and AYC>
D Check for ground and damage of the power line
NG→Repair
MUT-II Data List
D No.14 Longitudinal G sensor voltage
OK: Refer to P.22A-35. (Data List Reference Table)
NG→Refer to GROUP 35B - Troubleshooting <Vehicles with
ACD and AYC>, or replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
OK
OK