MITSUBISHI MONTERO 1998 Service Manual
Page 1001 of 1501
PARASITIC LOAD EXPLANATION & TEST PROCEDURES
1998 Mitsubishi Montero
GENERAL INFORMATION
Parasitic Load Explanation & Test Procedures
* PLEASE READ THIS FIRST *
This article is provided for general information only. Not
all procedures apply to all makes and models.
GENERAL INFORMATION
The term Parasitic Load refers to electrical devices that
continue to use or draw current after the ignition switch is turned to
OFF position. This small amount of continuous battery draw is
expressed in milliamps (mA). On Ford Motor Co. and General Motors
vehicles produced after 1980, a typical Parasitic Load should be no
more than 50 milliamps (0.050 amps).
Vehicles produced since 1980 have memory devices that draw
current with ignition off for as long as 20 minutes before shutting
down the Parasitic Drain. When Parasitic Load exceeds normal
specifications, the vehicle may exhibit dead battery and no-start
condition.
Follow test procedure for checking Parasitic Loads to
completion. A brief overview of a suggested test procedure is included
along with some typical Parasitic Load specifications. Refer to the
GENERAL MOTORS PARASITIC LOAD TABLE chart.
TESTING FOR PARASITIC LOAD
INTRODUCTION
CAUTION: Always turn ignition off when connecting or disconnecting
battery cables, battery chargers or jumper cables. DO NOT
turn test switch to OFF position (which causes current to run
through ammeter or vehicle electrical system).
NOTE: Memory functions of various accessories must be reset after
the battery is reconnected.
The battery circuit must be opened to connect test switch
(shunt) and ammeter into the circuit. When a battery cable is removed,\
timer circuits within the vehicle computer are interrupted and
immediately begin to discharge. If in doubt about the condition of the
ammeter fuse, test it with an ohmmeter prior to beginning test. An
open fuse will show the same reading (00.00) as no parasitic drain.
Begin test sequence with the meter installed and on the 10-amp scale.
Select lower scale to read parasitic draw.
TEST PROCEDURE USING TEST SWITCH
1) Turn ignition off. Remove negative battery terminal cable.
Install Disconnect Tool (J-38758) test switch male end to negative
battery cable. Turn test switch knob to OFF position (current through
meter). Install negative battery cable to the female end of test
switch.
2) Turn test switch knob to ON position (current through
switch). Road test vehicle with vehicle accessories on (radio, air
conditioner, etc.). After road test, turn ignition switch to LOCKED
position and remove key. Connect ammeter terminals to test switch
Page 1002 of 1501
terminals. See Fig. 1. Select 10-amp scale.
3) Turn off all electrical accessories. Turn off interior
lights, underhood lamp, trunk light, illuminated entry, etc. To avoid
damaging ammeter or obtaining a false meter reading, all accessories
must be off before turning test switch knob to OFF position.
4) Turn test switch knob to OFF position to allow current to
flow through ammeter. If meter reads wrong polarity, turn test switch
to ON position and reverse leads. Turn test switch to OFF position.
Observe current reading. If reading is less than 2 amps, turn test
switch to ON position to keep electrical circuits powered-up.
5) Select low amp scale. Switch lead to the correct meter
position. Turn test switch to OFF position and compare results to
normal current draw. See the GENERAL MOTORS PARASITIC LOAD TABLE . If
current draw is unusually high for the vehicle's overall electrical
system, remove system fuses one at a time until current draw returns
to normal.
6) Turn test switch to ON position each time door is opened
or fuse is removed. Turn switch to OFF position to read current draw
value through meter. When the cause of excessive current drain has
been located and repaired, remove test switch and reconnect negative
battery cable to the negative battery terminal.
Fig. 1: Connecting Kent-Moore Disconnect Tool (J-38758)
Courtesy of General Motors Corp.
GENERAL MOTORS PARASITIC LOAD TABLE (MILLIAMPS)
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Page 1003 of 1501
Normal Maximum Time-Out
Component Draw Draw (Minutes)
Anti-Theft System ................ 0.4 .... 1.0 ....... ...
Auto Door Lock ................... 1.0 .... 1.0 ....... ...
Body Control Module .............. 3.6 ... 12.4 ........ 20
Central Processing System ........ 1.6 .... 2.7 ........ 20
Electronic Control Module ........ 5.6 ... 10.0 ....... ...
Electronic Level Control ......... 2.0 .... 3.3 ........ 20
Heated Windshield Module ......... 0.3 .... 0.4 ....... ...
HVAC Power Module ................ 1.0 .... 1.0 ....... ...
Illuminated Entry ................ 1.0 .... 1.0 ......... 1
Light Control Module ............. 0.5 .... 1.0 ....... ...
Oil Level Module ................. 0.1 .... 0.1 ....... ...
Multi-Function Chime ............. 1.0 .... 1.0 ....... ...
Pass Key Decoder Module ......... 0.75 .... 1.0 ....... ...
Power Control Module ............. 5.0 .... 7.0 ....... ...
Retained Accessory Power ......... 3.8 .... 3.8 ....... ...
Radio ............................ 7.0 .... 8.0 ........ 15
Twilight Sentinel Module ......... 1.0 .... 1.0 ....... ...
Voltage Regulator ................ 1.4 .... 2.0 ....... ...
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INTERMITTENT PARASITIC LOAD PROBLEMS
Intermittent parasitic lad can occur because of a memory
device that does not power down with ignition off. With an
intermittent parasitic load, battery draw can be greater than 1.0 amp.
To find and intermittent problem requires that an ammeter and
Disconnect Tool (J-38758) test switch be connected and left in the
circuit. See Fig. 1. Road test vehicle. After road test, turn ignition
off and remove key.
Monitor the milliamps scale for 15-20 minutes after ignition
is turned off. This allows monitoring memory devices to determine if
they time out and stop drawing memory current. The test switch is
needed to protect ammeter when the vehicles is started.
DIODE CHECK & SOLENOID TEST (GENERAL MOTORS)
Page 1004 of 1501
Fig. 2: Diode Check & Solenoid Test (General Motors)
Courtesy of General Motors Corp.
QUAD DRIVER TEST (GENERAL MOTORS)
Page 1005 of 1501
Fig. 3: Quad Driver Test (General Motors)
Courtesy of General Motors Corp.
Page 1006 of 1501
PASSIVE RESTRAINT SYSTEM INSPECTION
1998 Mitsubishi Montero
GENERAL INFORMATION
Passive Restraint System Inspection - Asian
* PLEASE READ THIS FIRST *
Follow all manufacturers servicing precautions when working
with air bag systems. See SERVICE PRECAUTIONS in the appropriate AIR
BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT
section.
INTRODUCTION
When a vehicle equipped with passive restraint system has
been involved in a collision, certain systems and components must be
inspected and or replaced regardless of whether or not the air bag has
deployed. Follow the manufacturer's guidelines provided in this
article.
ACURA (1988-98)
AIR BAG APPLICATION
AIR BAG APPLICATION TABLE - ACURA (1988-98) \
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Model Year (1) Location
Integra .............. 1994-98 ..................... D/P
Legend ............... 1991-95 ..................... D/P
1988-90 ...................... DS
NSX .................. 1993-98 ..................... D/P
1991-92 ...................... DS
Vigor ................ 1993-94 ..................... D/P
1992 ........................ DS
2.2CL ................. 1997 ....................... D/P
2.3CL ................. 1998 ....................... D/P
2.5TL ................ 1995-98 ..................... D/P
3.0CL ................ 1997-98 ..................... D/P
3.2TL ................ 1996-98 ..................... D/P
3.5RL ................ 1996-98 ..................... D/P
SLX .................. 1996-98 ..................... D/P
( 1) - Location Definitions: D/P = Driver's & Passenger's
Side, DS = Driver's Side Only, SI = Side Impact.
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INSPECTION PROCEDURES
INSPECTION PROCEDURES TABLE - ACURA (1988-98 EXCEPT SLX) \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Seat Belt Tensioners (If Equipped)
* SRS Control Unit
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Inspect & If
* Cable Reel
Damaged, Replace
* Dash or Impact Sensors (If Equipped)
Component
* Seat Belts
Page 1007 of 1501
(Even If Air * SRS Control Unit
Bag Did Not
* Wiring Harness
Deploy)
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Comments
* If any components are damaged or bent, they
must be replaced.
* DO NOT attempt SRS wiring repairs. If SRS
wiring or harness connectors are faulty,
replace faulty wiring harness.
* After vehicle is repaired, ensure AIR BAG
warning light is functioning properly.
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INSPECTION PROCEDURES TABLE - ACURA (1996-98 SLX) \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Sensing & Diagnostic Module (SDM)
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Inspect & If
* Instrument Panel Braces
Damaged, Replace
* Instrument Panel Steering Column
Component Reinforcement Plate
(Even If Air
* Seat Belts & Mounting Points
Bag Did Not
* Knee Bolsters & Mounting Points
Deploy)
* Steering Column
* SRS Coil Assembly
* Wiring Harnesses
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Comments
* If any components are damaged or bent, they
must be replaced.
* DO NOT attempt wiring harness repairs.
Replace harness.
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HONDA (1991-98)
AIR BAG APPLICATION
AIR BAG APPLICATION TABLE - HONDA (1991-98) \
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Model Year (1) Location
Accord ............... 1993-98 ..................... D/P
1991-92 ...................... DS
Civic ................ 1994-98 ..................... D/P
1992-93 ...................... DS
Civic del Sol ........ 1994-97 ..................... D/P
1993 ........................ DS
CR-V ................. 1997-98 ..................... D/P
Odyssey .............. 1995-98 ..................... D/P
Prelude .............. 1994-98 ..................... D/P
SI 4WS ............. 1992-93 ..................... D/P
Except SI 4WS ...... 1992-93 ...................... DS
Passport ........... 1995 1/2-98 ................... D/P
( 1) - Location Definitions: D/P = Driver's & Passenger's
Side, DS = Driver's Side Only, SI = Side Impact.
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INSPECTION PROCEDURES
Page 1008 of 1501
INSPECTION PROCEDURES TABLE - HONDA (1991-98 EXCEPT PASSPORT) \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Seat Belt Tensioners (If Equipped)
* SRS Control Unit
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Inspect & If
* Cable Reel
Damaged, Replace
* Dash Sensors (1991-94)
Component
* Seat Belts
(Even If Air
* SRS Control Unit
Bag Did Not
* Wiring Harness
Deploy)
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Comments
* If any components are damaged or bent, they
must be replaced.
* DO NOT attempt SRS wiring repairs. If SRS
wiring or harness connectors are faulty,
replace faulty wiring harness.
* After vehicle is repaired, ensure AIR BAG
warning light is functioning properly.
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INSPECTION PROCEDURES TABLE - HONDA (1995 1/2-98 PASSPORT) \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Sensing & Diagnostic Module (SDM)
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Inspect & If
* Instrument Panel Braces
Damaged, Replace
* Instrument Panel Steering Column
Component Reinforcement Plate
(Even If Air
* Seat Belts & Mounting Points
Bag Did Not
* Knee Bolsters & Mounting Points
Deploy)
* Steering Column
* SRS Coil Assembly
* Wiring Harnesses
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Comments
* If any components are damaged or bent, they
must be replaced.
* DO NOT attempt wiring harness repairs.
Replace harness.
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HYUNDAI (1994-98)
AIR BAG APPLICATION
AIR BAG APPLICATION TABLE - HYUNDAI (1994-98) \
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Model Year (1) Location
Accent ............... 1995-98 ..................... D/P
Elantra .............. 1996-98 ..................... D/P
1994-95 ...................... DS
Sonata ............... 1995-98 ..................... D/P
Tiburon .............. 1997-98 ..................... D/P
( 1) - Location Definitions: D/P = Driver's & Passenger's
Side, DS = Driver's Side Only, SI = Side Impact.
Page 1009 of 1501
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INSPECTION PROCEDURES
INSPECTION PROCEDURES TABLE - HYUNDAI (1994-98) \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Control Module
* Steering Column Clockspring
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Inspect & If
* Any Seat Belt In Use At Time Of Collision
Damaged, Replace
* Steering Column
Component
* Steering Wheel
(Even If Air
* Wiring Harness
Bag Did Not
Deploy)
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Comments
* If any components are damaged or bent, they
must be replaced.
* DO NOT attempt SRS wiring repairs. If SRS
wiring or harness connectors are faulty,
replace faulty wiring harness.
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INFINITI (1990-98)
AIR BAG APPLICATION
AIR BAG APPLICATION TABLE - INFINITI (1990-98) \
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Model Year (1) Location Inspection Table
G20 ......... 1993-96 ........... D/P ............... INFINITI-2
I30 ........... 1998 .......... D/P, SI ............. INFINITI-1
1997 ............ D/P ............... INFINITI-1
1996 ............ D/P ............... INFINITI-2
J30 ........... 1997 ............ D/P ............... INFINITI-1
1994-96 ........... D/P ............... INFINITI-2
1993 ............ D/P ............... INFINITI-3
M30 ......... 1990-92 ............ DS ............... INFINITI-3
Q45 ........... 1998 .......... D/P, SI ............. INFINITI-1
1997 ............ D/P ............... INFINITI-1
1994-96 ........... D/P ............... INFINITI-2
1990-93 ............ DS ............... INFINITI-3
QX4 ......... 1997-98 ........... D/P ............... INFINITI-1
( 1) - Location Definitions: D/P = Driver's & Passenger's Side,
DS = Driver's Side Only, SI = Side Impact.
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INSPECTION PROCEDURES
INSPECTION PROCEDURES TABLE - INFINITI-1 \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Control Unit, Diagnosis
* Satellite Sensor ( 1)
* Seat Belt Pretensioners ( 2)
Page 1010 of 1501
* Side Air Bag Module ( 1)
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Inspect & If
* Center Pillar Inner ( 1)
Damaged, Replace
* Instrument Panel
Component
* Seat ( 1)
(Even If Air
* Seat Belt Pretensioners ( 2)
Bag Did Not
* Spiral Cable
Deploy)
* Steering Wheel
* Wiring Harnesses
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Comments
* Inspect all SRS components for dents,
deformities or rust.
* After repairs are completed, check AIR BAG
warning light to ensure system is functioning
properly.
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(
1) - On side of impact.
(
2) - Except I30 and QX4.
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INSPECTION PROCEDURES TABLE - INFINITI-2 \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Control Unit, Diagnosis
* Instrument Panel
* Seat Belt Pretensioners ( 1)
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Inspect & If
* All Sensors ( 2)
Damaged, Replace
* Spiral Cable
Component
* Steering Wheel
(Even If Air
* Wiring Harnesses
Bag Did Not
Deploy)
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Comments
* Inspect all SRS components for dents,
deformities or rust.
* After repairs are completed, check AIR BAG
warning light to ensure system is functioning
properly.
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(
1) - Except I30.
(
2) - Except 1996 I30, 1995-96 J30 and 1995-96 Q45.
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INSPECTION PROCEDURES TABLE - INFINITI-3 \
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Action Component or System
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Replace After
* Air Bag Module(s)
Deployment
* Control Unit, Diagnosis
* Sensors In Affected Collision Area
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Inspect & If
* All Sensors
Damaged, Replace
* Spiral Cable
Component
* Steering Wheel
(Even If Air
* Wiring Harnesses
Bag Did Not
Deploy)
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Comments
* Inspect all SRS components for dents,
deformities or rust.