Sensor MITSUBISHI ENDEAVOR 2004 Service Repair Manual

The system receives an abnormal flag for the straight G sensor active check
consecutively two times.
DTC C1390: LATERAL G-SENSOR ACTIVE CHECK (ACTIVE CHECK FAILURE)
The system receives an abnormal flag for the lateral G sensor active check
consecutively two times.
TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
Current trouble
Malfunction of the G and yaw late sensor Damaged wiring harness or connector Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
Past trouble Carry out diagnosis with particular emphasis on connector(s) or wiring harness
between the TCL/ASC-ECU and the G and yaw late sensor. For diagnosis
procedures, refer to HOW TO TREAT PAST TROUBLE
).
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
1. Connect scan tool MB991958 to the data link connec
tor. CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1366, C1371, C1381, C1385, C1386, C1387, C1388, C1389 or
C1389 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Using scan tool MB991958, check data list item 30: Straight G
sensor, item 31: Lateral G sensor and item 33: Yaw rate sensor.
1. Connect scan tool MB991958 to the data link connec
tor. CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Use scan tool MB991958 to read the following data list.
Item 30: Straight G sensor/Item 31: Lateral G sensor
Acceleration should measure -0.98 - 0.98 m/s
2 when the vehicle is
stopped at a level surface.
Acceleration should change within the range of -9.8 - 9.8 m/s
2 during
running.
Item 33: Yaw rate sensor
Angular velocity should measure -3 - 3 deg/s when the vehicle is
stopped at a level surface. Angular velocity should change within the range of -50 -50 deg/s
during running.
Q: Is the G and yaw rate sensor output normal?
YES: Then Go to Step 9.
NO: Go to Step 4.
STEP 4. Measure the voltage at G and yaw rate sensor connector C-36.
1. Disconnect the G and yaw rate sensor connector C-36, and measure at the
harness side connector.
2. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 1 and body ground. Voltage should measure battery positive voltage (approximately 12
volts
).

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 148: Measuring Voltage At G And Yaw Rate Sensor

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Joint connector (1) C-04
Fig. 150: Checking Joint Connector (1) C
-04
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
G and yaw rate sensor connector C-36

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 151: Checking G And Yaw Rate Sensor Connector C
-36
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check the connectors, for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES: Open or short circuit may be present in the G and yaw rate sensor
power supply lines. Repair the wiring harness between G and yaw rate
sensor connector C-36 terminal 1 and junction block connector C-215
terminal 2. Then go to Step 10.
NO: Repair or replace the damaged component(s).
STEP 6. Measure the resistance at the G and yaw rate sensor connector C-
36.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

1. Disconnect the G and yaw rate sensor connector C-36, and measure at the
harness side connector.
2. Measure the resistance between terminal 4 and body ground.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 152: Measuring Resistance At G And Yaw Rate Sensor

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 153: Checking Connector C
-24
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the connector and terminals in good condition?
YES: Open circuit may be present in the G and yaw rate sensor ground
lines. Repair the wiring harness between G and yaw rate sensor connector
C-36 terminal 4 and ground. Go to Step 10.
NO: Repair or replace the damaged component(s). Then go to Step 10.
STEP 8. Recheck for diagnostic trouble code after the G-sensor is

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

replaced
.
Replace the G-sensor, and check whether DTC C1381, C1382 or C1383 is
reset.
1. Replace the G-sensor.
2. Connect scan tool MB991958 to the data link connec
tor. CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor