Mitsubishi Outlander XL. Manual — part 371
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
⦆
CAN line harness damage or connector damage.
⦆
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
STEP 1. Using scan tool MB991958, diagnose CAN bus line.
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)
Diagnose CAN bus line.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the CAN bus line normal?
YES:
Go to Step 2.
NO:
Repair the CAN bus line. Refer to GROUP 54D, Can Bus
STEP 2. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
(1)
Turn the ignition switch to the "ON" position.
(2)
Read the DTC.
(3)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is DTC P1590 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.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-679
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC P1603: Battery Backup Line Malfunction
M11310100258USA0000010000
ZK602860
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
104
BATTERY
BACKUP
BATTERY BACKUP CIRCUIT
2
7.5A
AA00
ENGINE
CONTROL
MODULE
WHITE
WHITE
RED-BLA
CK
RELAY BOX
(ENGINE
COMPARTMENT)
B-11
36
FUSIBLE LINK
ZK603592
ECM
B-11 (GR)
Connector: B-11
AA00
13Ab-680
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
TECHNICAL DESCRIPTION
The ECM checks the open circuit of battery backup
line.
NOTE:
When the system detects an open circuit in
the battery backup line, it makes 1 failure
judgment of other diagnostic trouble codes (DTCs).
DESCRIPTIONS OF MONITOR METHODS
Battery backup line voltage is under 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
Logic Flow Chart
ZK603806AA00
Good
Malfunction
Start
End
No
No
Yes
Yes
Yes
No
Monitoring
conditions
Continuous
failure for 2secs
Circuit voltage
< 6V
Check Conditions
⦆
Engine starting sequence was completed.
⦆
Battery positive voltage is higher than 10 volts.
Judgement Criterion
⦆
Battery backup line voltage has continued to be 6
volts or lower for 2 seconds.
OBD-II DRIVE CYCLE PATTERN
None.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )
⦆
Connector damage.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-681
DIAGNOSTIC TROUBLE CODE PROCEDURES
⦆
Harness damage.
⦆
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
⦆
MB992110: Power Plant ECU Check Harness
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)
Read the DTC.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is DTC P1603 set?
YES:
Go to Step 2.
NO:
The inspection is complete.
STEP 2. Measure the backup power supply voltage at ECM
connector B-11 by using power plant ECU check harness
special tool MB992110.
ECM
ZK603234AA00
Body side harness
MB992110
(1)
Disconnect all ECM connectors. Connect the power plant
ECU check harness special tool MB992110 between the
separated connectors.
13Ab-682
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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