Mitsubishi Outlander XL. Manual — part 567
DTC C1460: Drive mode selector circuit failure
M12704100017USA0000010000
ETACS-
ECU
IGNITION
SWITCH (IG1)
IG1
RELAY
AWD-ECU
DRIVE MODE
SELECTOR
D7G27M001A00
GREY
WHITE
BLA
CK
BLA
CK
BLA
CK
VIOLET
VIOLET
LIGHT
GREEN
LIGHT
GREEN
C-128
C-32
C-23
ZC6000240001
Connectors: C-32, C-128
C-128
C-32
ZC6000260001
ETACS-ECU
(front view)
C-313
(BR)
C-317
Connectors: C-313, C-317
ELECTRONIC CONTROL AWD
27C-27
DIAGNOSIS
ZC6000350000
C-23
Connector: C-23
If there is any problem in the CAN bus lines, an
incorrect DTC may be set. Prior to this diagnosis,
always diagnose the CAN bus lines.
OPERATION
If switching the drive mode selector to FWD or LOCK
do not change the drive mode at all, AWD-ECU
detects the drive mode selector internal circuit failure,
and switches from AWD AUTO mode in order to
prevent system damage.
DTC SET CONDITIONS
If the following conditions are met, AWD-ECU
switches the control from AWD mode to AWD AUTO
mode, flashes the AWD/LOCK indicators alternately,
and sets the DTC No. C1460.
⦆
Drive mode selector internal short
⦆
IG1 voltage: 7 V or more
TROUBLESHOOTING HINTS
Current trouble
⦆
Drive mode selector internal short
⦆
Short to earth between AWD-ECU and the drive
mode selector
⦆
AWD-ECU malfunction
Past trouble
⦆
Intermittent wiring harness or connector failure
NOTE:
For diagnosis procedures, refer to "How
to treat past trouble". (Refer to GROUP 00, How
to Treat Past Trouble P.00-17.)
⦆
Intermittent malfunction of drive mode selector
DIAGNOSIS
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: Vehicle Communication Interface
⦆
MB991827: M.U.T.-III USB Cable
⦆
MB991910: M.U.T.-III Main Harness A
STEP 1. Scan tool MB991958 CAN bus diagnostics
Use scan tool MB991958 to diagnose the CAN bus lines.
Q:Is the check result normal?
YES:
Go to Step 3.
NO:
Repair the CAN bus line. (Refer to GROUP 54D - CAN
bus diagnostic chart P.54D-17.) On completion, go to
Step 2.
STEP 2. Check whether the DTC is reset after repairing the
CAN bus line.
(1)
Erase the DTC.
(2)
Turn the ignition switch from the LOCK (OFF) position to the
ON position and hold there for 15 seconds.
(3)
Check that the meter display is correct when the drive mode
selector is switched to each position (FWD, AWD, and
LOCK).
27C-28
ELECTRONIC CONTROL AWD
DIAGNOSIS
(4)
Check if the DTC is set.
Q:Is the DTC No. C1460 set?
YES:
Go to Step 3.
NO:
This diagnosis is complete.
STEP 3. Scan tool MB991958 data list
Check the following service data. (Refer to P.27C-87.)
⦆
Item 10: FWD SW
⦆
Item 11: LOCK SW
Q:Is the check result normal?
YES:
Replace AWD-ECU. (Refer to P.27C-92.)
NO:
Go to Step 4.
STEP 4. Check the following connector:
Check the connectors below for improper engagement, terminal
damage or terminal drawn in the connector case.
⦆
C-128 AWD-ECU connector
⦆
C-23 Drive mode selector connector
⦆
C-32 intermediate connector
Q:Are the connectors and terminals in good condition?
YES:
Go to Step 5.
NO:
Repair the connector(s) or terminal(s). Then go to
Step 10.
STEP 5. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU
connector and the C-23 drive mode selector connector for
damage or other problem.
Q:Is the wiring harness in good condition?
YES:
Go to Step 6.
NO:
Repair damage or other problem in the wiring harness.
Then go to Step 10.
STEP 6. Resistance measurement between the drive mode
selector connector terminals
ZC3052090001
Disconnect the C-23 connector, and measure the resistance
value between the connector terminals on the drive mode
selector side. (Refer to P.27C-94.)
Standard value: Continuity exists (2 Ω or less).
Q:Is the measured resistance value within the standard
value range?
YES:
Go to Step 7.
NO:
Replace the drive mode selector. (Refer to P.
STEP 7. Voltage measurement at the AWD-ECU connector
(1)
Disconnect the C-128 AWD-ECU connector.
ELECTRONIC CONTROL AWD
27C-29
DIAGNOSIS
C-128 harness
connector:
harness side
ZC3047200000
(2)
Measure the voltage between the C-128 wiring harness side
connector terminals No. 4 and No. 10.
OK: Battery voltage
Q:Is the check result normal?
YES:
Go to Step 9.
NO:
Go to Step 8.
STEP 8. Wiring harness check
⦆
Wiring harness between the C-128 AWD-ECU connector and
the C-313 ETACS-ECU connector
⦆
Wiring harness between the C-128 AWD-ECU connector and
the C-317 ETACS-ECU connector
Check the wiring harness above for damage or other problem.
Q:Is the wiring harness in good condition?
YES:
Go to Step 9.
NO:
Repair the wiring harness. Then go to Step 10.
STEP 9. Check whether the DTC is reset.
(1)
Erase the DTC.
(2)
Turn the ignition switch from the LOCK (OFF) position to the
ON position and hold there for 15 seconds.
(3)
Check that the meter display is correct when the drive mode
selector is switched to each position (FWD, AWD, and
LOCK).
(4)
Check if the DTC is set.
Q:Is the DTC No. C1460 set?
YES:
Replace AWD-ECU. (Refer to P.27C-92.) Then go to
Step 10.
NO:
The trouble can be an intermittent malfunction.
(Refer to GROUP 00 - How to Cope with Intermittent
Malfunction P.00-15.)
STEP 10. Check whether the DTC is reset.
(1)
Erase the DTC.
(2)
Turn the ignition switch from the LOCK (OFF) position to the
ON position and hold there for 15 seconds.
(3)
Check that the meter display is correct when the drive mode
selector is switched to each position (FWD, AWD, and
LOCK).
(4)
Check if the DTC is set.
Q:Is the DTC No. C1460 set?
YES:
Diagnose again from Step 1.
NO:
This diagnosis is complete.
27C-30
ELECTRONIC CONTROL AWD
DIAGNOSIS
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