Mitsubishi Outlander XL. Manual — part 351
(3)
After the DTC has been deleted, read the DTC again.
(4)
Turn the ignition switch to the "LOCK"(OFF) position.
Q:Is DTC P0638 set?
YES:
Retry the troubleshooting.
NO:
The inspection is complete.
DTC P0642: Throttle Position Sensor Power Supply
M11310100248USA0000010000
TECHNICAL DESCRIPTION
⦆
ECM checks the throttle position sensor power
voltage for abnormal conditions.
DESCRIPTIONS OF MONITOR METHODS
Throttle position sensor source voltage is smaller
than the specified value.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)
Other Monitor (There is no temporary DTC stored in
memory for the item monitored below)
⦆
Not applicable
Sensor (The sensor below is determined to be
normal)
⦆
Not applicable
DTC SET CONDITIONS
Check Condition
⦆
Battery positive voltage is higher than 6.3 volts.
Judgement Criterion
⦆
Throttle position sensor power voltage should be
4.1 volts or less for 0.3 second.
OBD-II DRIVE CYCLE PATTERN
None.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
⦆
ECM failed.
DIAGNOSIS
Required Special Tools:
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: V.C.I.
⦆
MB991827: USB Cable
⦆
MB991910: Main Harness A
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-599
DIAGNOSTIC TROUBLE CODE PROCEDURES
STEP 1. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK"(OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958 to the data link connector.
(2)
Turn the ignition switch to the "ON" position.
(3)
After the DTC has been deleted, read the DTC again.
(4)
Turn the ignition switch to the "LOCK"(OFF) position.
Q:Is DTC P0642 set?
YES:
Replace the ECM. When the ECM is replaced, register
the ID code. Refer to GROUP 42B, ID Code Registration
Judgment Table <Vehicles with KOS> P.42B-12or GROUP
42C, ID Code Registration Judgment Table <Vehicles with
WCM> P.42C-8.
NO:
It can be assumed that this malfunction is
intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope
with Intermittent Malfunctions P.00-15.
13Ab-600
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC P0657: Throttle Actuator Control Motor Relay Circuit Malfunction
M11310100249USA0000010000
1
3
2
4
71 72 73 74 75 76 77 78 79 80 81 82
83 84 85 86 87 88 89 90 91 92 93 94
95 96 97 98 99
100 101 102 103 104
112 113 114
109
108
107
110 111
115 116
106
105
118
117
1
2
3
4
ZK602856
RED
20A
WHITE
WHITE
WHITE
A-33X
MFI
RELAY
THROTTLE ACTUATOR
CONTROL MOTOR RELAY
4
3
1
2
22
15A
8
TO ECM
OFF
ON
A-21X
B-11
2
4
3
BR
O
WN-WHITE
POWER
SOURCE
SKY BLUE
1
OFF
ON
72
84
ENGINE CONT ROL MODUL E
AA00
THROTTLE ACTUATOR CONTROL MOTOR RELAY CIRCUIT
RELAY BOX
(ENGINE COMPARTMENT)
36
FUSIBLE LINK
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-601
DIAGNOSTIC TROUBLE CODE PROCEDURES
ZK603589
MFI relay
A-33X
Connector: A-33X
AA00
ZK603628
A-21X
Connector: A-21X
AA00
Throttle actuator
control motor relay
ZK603592
ECM
B-11 (GR)
Connector: B-11
AA00
CIRCUIT OPERATION
⦆
Battery positive voltage is applied to the throttle
actuator control motor relay terminal (terminal No.
4).
⦆
Battery positive voltage is applied to the throttle
actuator control motor relay terminal (terminal No.
2) from the MFI relay (terminal No. 2).
⦆
ECM (terminal No. 84) applies current to the throttle
actuator control motor relay coil by turning ON the
power transistor in the unit in order to turn the relay
ON.
⦆
When the throttle actuator control motor relay turns
ON, battery positive voltage is supplied by the
throttle actuator control motor relay (terminal No. 3)
to the ECM (terminal No. 72).
TECHNICAL DESCRIPTION
⦆
When the ignition switch ON signal is input into the
ECM, the ECM turns ON the throttle actuator control
motor relay.
DTC SET CONDITIONS
Check Condition
⦆
Battery positive voltage is higher than 8.3 volts.
Judgement Criterion
⦆
The power line voltage of the electronic controlled
throttle system should be 6.0 volts or less for 0.35
seconds.
OBD-II DRIVE CYCLE PATTERN
None.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
⦆
Malfunction of throttle actuator control motor relay.
⦆
Connector damage.
⦆
Harness damage.
⦆
ECM failed.
DIAGNOSIS
Required Special Tools:
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: V.C.I.
⦆
MB991827: USB Cable
13Ab-602
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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