2000 SUZUKI SWIFT air condition

BODY ELECTRICAL SYSTEM 8-3
DIAGNOSIS
HEADLIGHT
HEADLIGHTS WITH LEVELING SYSTEM (IF EQUIPPED)
TURN SIGNAL AND HAZARD WARNING LIGHT
NOTE:
Fuse name (“ ”) in the table below is shown on the fuse box cover.
Condition Possible Cause Correction
Headlights do not light
upLighting or dimmer switch faulty Check headlight switch.
Headlight R and L fuses blown Replace fuse to check for short.
Wiring or grounding faulty Repair circuit.
Only one headlight
does not light upBulb blown Replace bulb.
Headlight R or L fuse blown Replace fuse to check for short.
Wiring or grounding faulty Repair circuit.
Only one beam (“Hi”
or “Lo”) does not lightBulb blown Replace bulb.
Lighting or dimmer switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Both headlights do
not move“WIPER/WASHER” fuse blown Replace fuse to check for short.
Leveling switch faulty Check switch.
Supply voltage too low Recharge or replace battery.
One of headlights
(either Right or Left)
does not moveSocket, wiring or grounding faulty Repair.
Actuator faulty Check actuator.
Vehicle body around headlight deformed Repair body.
Headlight assembly itself deformed Replace headlight assembly.
Condition Possible Cause Correction
Flash rate high or one
side only flashesBulb blown on “flash rate high”-side Replace bulb.
Incorrect bulb Replace bulb.
Turn signal/hazard warning relay faulty Check relay.
Open circuit or high resistance existing
between combination switch (turn signal/hazard
warning switch) and light on one sideRepair circuit.
Wiring or grounding faulty Repair circuit.
No flashing
“HORN HAZARD” fuse and/or “TURN/BACK”
fuse(s) blownReplace fuse(s) to check for short.
Open circuit or high resistance existing
between battery and switchRepair circuit.
Turn signal/hazard relay faulty Check relay.
Combination switch or hazard switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
Flash rate low
Supply voltage low Check charging system.
Turn signal/hazard relay faulty Check relay.

8-4 BODY ELECTRICAL SYSTEM
CLEARANCE, TAIL AND LICENSE PLATE LIGHT
BACK-UP LIGHT
BRAKE LIGHT
FRONT FOG LIGHT (IF EQUIPPED)
REAR FOG LIGHT (IF EQUIPPED)
Condition Possible Cause Correction
All lights do not light
up“TAlL” fuse blown Replace fuse to check for short.
Combination switch (lighting and dimmer
switch) faultyCheck switch.
Wiring or grounding faulty Repair circuit.
Some lights do not
light upBulb(s) blown Replace bulb(s).
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Back-up lights do not
light upBulb(s) blown Replace bulb(s).
“TURN/BACK” fuse blown Replace fuse to check for short.
Back-up light switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
Back-up lights stay on
Back-up light switch faulty Check or replace switch.
Condition Possible Cause Correction
Brake lights do not
light upBulb(s) blown Replace bulb(s).
“STOP” fuse blown Replace fuse to check for short.
Brake light (stop lamp) switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
Brake lights stay on
Brake light (stop lamp) switch faulty Check, adjust or replace switch.
Condition Possible Cause Correction
Only one light does
not lightBulb blown Replace bulb.
Wiring or grounding faulty Repair circuit.
Front fog lights do not
light“FOG” fuse blown Replace fuse to check for short.
Front fog light switch faulty Check switch.
Front fog light relay faulty Replace relay.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Rear fog light does
not come on“FOG” fuse blown Replace fuse to check for short.
Rear fog light switch faulty Check fog light switch.
Lighting switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
Bulb blown Replace bulb.

BODY ELECTRICAL SYSTEM 8-5
SPEEDOMETER AND VSS
FUEL METER AND FUEL LEVEL SENSOR (GAUGE UNIT)
ENGINE COOLANT TEMPERATURE (ECT) METER AND ECT SENSOR
OIL PRESSURE WARNING LIGHT
Condition Possible Cause Correction
Speedometer shows
no operation or incor-
rect operation“IG/METER” and/or “RADIO/DOME” fuse(s)
blownReplace fuse(s) to check for short.
VSS faulty Check VSS.
Printed plate in combination meter faulty Check printed plate.
Wiring or grounding faulty Repair circuit.
Signal rotor on differential case faulty Check signal rotor.
Speedometer faulty Replace speedometer.
Condition Possible Cause Correction
Fuel meter shows no
operation or incorrect
operation“IG/METER” fuse blown Replace fuse to check for short.
Fuel gauge unit faulty Check fuel gauge unit.
Printed plate in combination meter faulty Check printed plate.
Fuel meter faulty Check fuel meter.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Engine coolant temp.
meter shows no oper-
ation or incorrect
operation“IG/METER” fuse blown Replace fuse to check for short.
ECT meter faulty Check ECT meter.
Printed plate in combination meter faulty Check printed plate.
ECT sensor faulty Check ECT sensor.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Oil pressure warning
light does not light up
when turn the ignition
switch to ON position
at engine offBulb in combination meter blown Replace bulb.
“IG/METER” fuse blown Replace fuse to check for short.
Printed plate in combination meter faulty Check printed plate.
Oil pressure switch faulty Check oil pressure switch.
Wiring or grounding faulty Repair circuit.
Oil pressure warning
light stay onOil pressure switch faulty Check oil pressure switch.

8-6 BODY ELECTRICAL SYSTEM
BRAKE AND PARKING BRAKE WARNING LIGHT
REAR WINDOW DEFOGGER
WIPERS AND WASHERS
FRONT WIPER AND WASHER
REAR WIPER AND WASHER (IF EQUIPPED)
Condition Possible Cause Correction
Brake warning light
does not light up
(when fluid low level
and/or parking brake
pull up)Bulb in combination meter blown Replace bulb.
Printed plate in combination meter faulty Check printed plate.
“IG/METER” fuse blown Replace fuse to check for short.
Brake fluid level switch faulty Check brake fluid level switch.
Parking brake switch faulty Check parking brake switch.
Wiring or grounding faulty Repair circuit.
Brake warning light
does not light up
when cranking (when
turned ignition switch
to ST position)Ignition switch faulty Check ignition switch.
Printed plate in combination meter faulty Check printed plate.
Wiring or grounding faulty Repair circuit.
Brake warning light
stay onBrake fluid level switch and/or parking brake
switch faultyCheck switch.
Condition Possible Cause Correction
Defogger does not
operate“REAR DEFG” fuse blown Replace fuse to check for short.
Heat wire faulty Repair heat wire.
Rear window defogger switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Wiper malfunctions
“WIPER/WASHER” fuse blown Replace fuse to check for short.
Wiper motor faulty Check wiper motor.
Combination switch (wiper switch) faulty Check wiper switch.
Wiring or grounding faulty Repair circuit.
Washer malfunctions
Washer hose or nozzle clogged Clean or repair clogged hose or
nozzle.
“WIPER/WASHER” fuse blown Replace fuse to check for short.
Washer motor faulty Check washer motor.
Combination switch (wiper switch) faulty Check wiper switch.
Wiring or grounding faulty Repair circuit.

BODY ELECTRICAL SYSTEM 8-7
POWER WINDOW CONTROL SYSTEM (IF EQUIPPED)
CIGARETTE LIGHTER
POWER DOOR LOCK CONTROL SYSTEM (IF EQUIPPED)
KEYLESS ENTRY SYSTEM (IF EQUIPPED)
Condition Possible Cause Correction
All power windows do
not operate“POWER WINDOW” fuse blown Replace fuse to check for short.
Ignition switch faulty Check ignition switch.
Power window main switch faulty Check power window main switch.
Wiring or grounding faulty Repair circuit.
Only one power win-
dow does not operateWiring and/or coupler faulty Check wiring and/or coupler.
Power window switch (main or sub) faulty Check power window switch.
Window actuator faulty Check window actuator.
Grounding faulty Repair.
Condition Possible Cause Correction
Cigarette lighter
shows no operation“CIGAR” fuse blown Replace fuse to check for short.
Ignition switch faulty Check ignition switch.
Cigarette lighter faulty Check cigarette lighter.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Power door(s) is (are)
not locked/unlocked
by driver side door
key switch“DOOR LOCK” fuse blown Replace fuse to check for short.
Ignition switch faulty Check ignition switch.
Driver’s door knob switch faulty Check driver’s door knob switch.
Door lock actuator faulty Check door lock actuator.
Wiring or grounding faulty Repair circuit.
Door lock controller faulty Check controller.
Condition Possible Cause Correction
Power door(s) is (are)
not locked/unlocked
by keyless entry trans-
mitter“DOOR LOCK” fuse blown Replace fuse to check for short.
Ignition switch faulty Check ignition switch.
Code registration error Register code.
Transmitter battery dead Replace battery.
Transmitter faulty Check transmitter.
Receiver faulty Check receiver.
Door lock controller faulty Check controller.
Wiring or grounding faulty Repair circuit.

8-8 BODY ELECTRICAL SYSTEM
POWER DOOR MIRROR CONTROL SYSTEM (IF EQUIPPED)
INTERIOR LIGHT
HORN
IGNITION KEY REMAINDER (IF EQUIPPED) AND LIGHT REMAINDER WARN-
ING BUZZER
SEAT BELT WARNING LIGHT (IF EQUIPPED)
Condition Possible Cause Correction
All power mirrors do
not operate“CIGAR” fuse blown Replace fuse to check for short.
Power door mirror switch faulty Check switch.
Wiring or grounding faulty Repair circuit.
One power mirror
does not operatePower door mirror switch faulty Check switch.
Actuator (power door mirror motor) faulty Check actuator.
Wiring or grounding faulty Repair circuit.
Condition Possible Cause Correction
Interior lights do not
light upBulbs blown Replace bulbs.
“RADIO/DOME” fuse blown Replace fuse to check for short.
Interior light switch faulty Check switch.
Door switch faulty Check switch.
Wiring or grounding Repair circuit.
One of interior light
does not light upBulb blown Replace bulb.
Interior light switch faulty Check switch.
Door switch faulty Check switch.
Wiring or grounding Repair circuit.
Condition Possible Cause Correction
Horn does not operate
“HORN/HAZARD” fuse blown Replace fuse to check for short.
Horn switch faulty Check horn switch.
Horn relay faulty Check horn relay.
Horn faulty Replace horn.
Condition Possible Cause Correction
Ignition key remain-
der and light remain-
der warning buzzer
shows no soundingBuzzer faulty Replace buzzer.
Wiring or grounding faulty Repair circuit.
Driver side door switch faulty Check door switch.
Ignition switch faulty Check ignition switch.
Condition Possible Cause Correction
Seat belt warning light
does not light upBulb in combination meter blown Replace bulb.
“IG/METER” fuse blown Replace fuse to check for short.
Seat belt switch faulty Check seat belt switch.
Wiring or grounding faulty Repair circuit.

BODY ELECTRICAL SYSTEM 8-9
FRONT SEAT HEATER (IF EQUIPPED)
ON-VEHICLE SERVICE
CAUTIONS IN SERVICING
When performing works related to electric systems, observe the cautions described in GENERAL INFORMA-
TION (Section 0A) of this manual for the purpose of protection of electrical parts and prevention of a fire from
occurrence.
HEADLIGHT
HEADLIGHT SWITCH
REMOVAL AND INSTALLATION
Refer to “CONTACT COIL AND COMBINATION SWITCH ASSEMBLY” in Section 3C. Condition Possible Cause Correction
Both seat back and
cushion do not
become hot although
seat heater switch is
LO/HI position“SEAT HTR” fuse blown Replace fuse to check for short.
Seat heater switch faulty Check switch.
Seat heater circuit in seat back and/or seat
cushion faultyCheck heater front back and/or
heater front cushion.
Wiring or grounding faulty Repair circuit.
Only seat back does
not become hot
although seat heater
switch is HI positionSeat heater circuit in seat back faulty Check heater front back.
Seat heater switch faulty Check switch.
Wiring faulty Repair.
Only seat cushion
does not become hot
although seat heater
switch is HI positionSeat heater circuit in seat back and/or seat
cushion faultyCheck heater front back and/or
heater front cushion.
Seat heater switch faulty Check switch.
Wiring faulty Repair.

IMMOBILIZER CONTROL SYSTEM 8G-1
6F1
6F2
6G
6H
6K
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8G
9
10
10A
10B
SECTION 8G
IMMOBILIZER CONTROL SYSTEM
CONTENTS
GENERAL DESCRIPTION ............................. 8G-2
WIRING CIRCUIT ....................................... 8G-3
ON-BOARD DIAGNOSTIC SYSTEM
(SELF-DIAGNOSIS FUNCTION) ................ 8G-4
DIAGNOSIS .................................................... 8G-5
PRECAUTIONS IN DIAGNOSING
TROUBLES ................................................. 8G-5
PRECAUTIONS IN IDENTIFYING
DIAGNOSTIC TROUBLE CODE............. 8G-5
DIAGNOSTIC FLOW TABLE ...................... 8G-6
DIAGNOSTIC TROUBLE CODE (DTC)
CHECK
(IMMOBILIZER CONTROL MODULE)........ 8G-7
DIAGNOSTIC TROUBLE CODE (DTC)
CHECK (ECM) ............................................ 8G-8
DIAGNOSTIC TROUBLE CODE TABLE .... 8G-9
TABLE A - IMMOBILIZER INDICATOR
LAMP CHECK (IMMOBILIZER INDICATOR
LAMP DOES NOT LIGHT AT IGNITION
SWITCH ON) ............................................ 8G-10
TABLE B - IMMOBILIZER INDICATOR
LAMP CHECK (IMMOBILIZER INDICATOR
LAMP REMAINS ON AFTER ENGINE
STARTS) ................................................... 8G-11
TABLE C - DTC IS NOT OUTPUT FROM
IMMOBILIZER CONTROL MODULE ........ 8G-12
DTC11/32 TRANSPONDER CODE NOT
MATCHED ................................................ 8G-13
DTC31 TRANSPONDER CODE NOT
REGISTERED ........................................... 8G-14
DTC12 FAULT IN IMMOBILIZER
CONTROL MODULE ................................ 8G-14DTC13 NO TRANSPONDER CODE
TRANSMITTED OR COIL ANTENNA
OPENED/SHORTED ................................. 8G-15
DTC21 ECM/IMMOBILIZER CONTROL
MODULE CODE NOT MATCHED
(IMMOBILIZER CONTROL MODULE
SIDE) ......................................................... 8G-16
DTC P1623 ECM/IMMOBILIZER CONTROL
MODULE CODE NOT MATCHED (ECM
SIDE) ......................................................... 8G-16
DTC P1620 ECM/IMMOBILIZER CONTROL
MODULE CODE NOT REGISTERED ....... 8G-16
DTC P1622 FAULT IN ECM ...................... 8G-16
DTC22 IGNITION SWITCH CIRCUIT
OPEN/SHORT ........................................... 8G-17
DTC23 NO ECM/IMMOBILIZER CONTROL
MODULE CODE TRANSMITTED FROM
ECM OR DLC CIRCUIT OPENED/
SHORTED ................................................. 8G-18
DTC P1621 NO ECM/IMMOBILIZER
CONTROL MODULE CODE TRANSMITTED
FROM IMMOBILIZER CONTROL
MODULE OR DLC CIRCUIT OPENED/
SHORTED ................................................. 8G-18
INSPECTION OF ECM, IMMOBILIZER
CONTROL MODULE AND ITS CIRCUIT .. 8G-20
ON-VEHICLE SERVICE ................................ 8G-21
PRECAUTIONS IN HANDLING
IMMOBILIZER CONTROL SYSTEM ......... 8G-21
IMMOBILIZER CONTROL MODULE ......... 8G-22
HOW TO REGISTER IGNITION KEY ........... 8G-23 WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).