Mitsubishi Montero Sport (2004+). Manual — part 510
IGNITION SWITCH
TSB Revision
CHASSIS ELECTRICAL
54-27
STEP 3. Check the ignition switch circuit.
(1) Disconnect ETACS-ECU connector D-11 and measure at
the junction block side.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal number 3 and
ground.
Q: Is the battery positive voltage (approximately 12 volts)
present?
YES : Replace the ETACS-ECU. Check that the malfunction
is eliminated.
NO : Go to Step 4.
STEP 4. Check ETACS-ECU connector D-11 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector D-11 in good condition?
YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
AC201084
JUNCTION
BLOCK (REAR)
D-11
COMPONENT SIDE
AB
CONNECTOR: D-11
AC002729AB
CONNECTOR D-11
(JUNCTION BLOCK SIDE)
AC201084
JUNCTION
BLOCK (REAR)
D-11
COMPONENT SIDE
AB
CONNECTOR: D-11
IGNITION SWITCH
TSB Revision
CHASSIS ELECTRICAL
54-28
STEP 5. Check the harness wires between the ignition
switch (IG1) and ETACS-ECU connector D-11 (terminal
No.3).
NOTE: After inspecting junction block D-08, inspect the wire. If
junction block D-08 is damaged, repair or replace it. Refer to
GROUP 00E, Harness Connector Inspection
Q: Are the harness wires between the ignition switch (IG1)
and ETACS-ECU connector D-11 (terminal No.3) in good
condition?
YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
STEP 6. Recheck for malfunction.
Q: Is a malfunction eliminated?
YES : The procedure is complete. (If no malfunctions are
found in all steps, an intermittent malfunction is
suspected. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Point
− How to
Cope with Intermittent Malfunction
.)
NO : Go to Step 1.
AC201941
M
3
1
4
2
CONNECTORS: D-08, D-11
AB
D-08 COMPONENT SIDE
D-11 COMPONENT SIDE
D-08
D-11
JUNCTION BLOCK (FRONT)
IGNITION SWITCH
TSB Revision
CHASSIS ELECTRICAL
54-29
INSPECTION PROCEDURE 4: The Ignition Key Reminder Tone Alarm does not Stop Sounding by
Removing the Ignition Key. (The Tone Alarm Stops Sounding by Closing the Driver's Door.)
.
CIRCUIT OPERATION
Refer to Inspection Procedure 1 for circuit operation
.
TECHNICAL DESCRIPTION (COMMENT)
It is possible that there is a malfunction of the input
signal from the key reminder switch or the
ETACS-ECU.
.
TROUBLESHOOTING HINTS
• Damaged harness wire or connector
• Malfunction of the ETACS-ECU
• Malfunction of the key reminder switch
.
DIAGNOSIS
Required Special Tools:
• MB991529: Diagnostic Trouble Code Check Harness
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B (Vehicles without
CAN communication system)
STEP 1. Check the input signal (by using pulse check).
Check the ETACS-ECU input signal (ignition switch position) by
using scan tool MB991958.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to "LOCK" (OFF) position before connect-
ing or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Check that the tone alarm of scan tool MB991958 sounds
when the ignition key is moved from the "LOCK" (OFF)
position to the "ON" position.
Q: Does the tone alarm of scan tool MB991958 sound when
the input signal enters?
YES : Replace the ETACS-ECU. Check that the malfunction
is eliminated.
NO : Go to Step 3.
AK303629AB
MB991911
MB991827
MB991824
16-PIN
IGNITION SWITCH
TSB Revision
CHASSIS ELECTRICAL
54-30
STEP 2. Check the input signal from the ignition switch (by
using a voltmeter).
Check the input signals from the following switches:
(1) Use special tool MB991529 to connect a voltmeter between
ground terminal 4 or 5 and ETACS-ECU terminal 9 of the
data link connector.
(2) Check that the voltmeter indicator deflects once when the
ignition key is moved from the "LOCK" position to the "ON"
position.
Q: Does the voltmeter indicator deflect?
YES : Replace the ETACS-ECU. Check that the malfunction
is eliminated.
NO : Go to Step 3.
STEP 3. Measure the continuity of the key reminder switch.
(1) Remove the driver's side under cover (Refer to
(2) Remove the column covers, lower and upper (Refer to
).
(3) Disconnect wiring connector D-16 from the key reminder
switch and measure at the key reminder switch side.
(4) Measure the resistance between terminal numbers 4 and 6.
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 4.
NO : Replace the key reminder switch. Then check that the
malfunction is eliminated.
STEP 4. Check the input signal from the key reminder
switch.
Check that the tone alarm stops sounding when terminal num-
ber 6 is grounded.
Q: Does the tone alarm stop sounding?
YES : Go to Step 5.
NO : Go to Step 7.
AC003527
GROUNDED TERMINAL
ETACS-ECU
TERMINAL
MB991529
AB
STATUS OF
IGNITION KEY
TESTER
CONNECTION
SPECIFIED
CONDITION
Removed
4
− 6
Less than 2 ohms
Inserted
4
− 6
Open circuit
AC002730
AC002731AB
CONNECTOR D-16
(HARNESS SIDE)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст