2000 SUZUKI SWIFT 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.

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 8-13
TURN SIGNAL AND HAZARD RELAY
The turn signal and hazard relay (1) is located near the fuse box
(2).
INSPECTION
Connect turn signal and hazard relay (1), battery (3) and two test
bulbs (12 V, 27 W) (2) as shown.
Unless a continued flash on and off is visible, replace.
Reference flashing cycle
: 60 - 120 cycle/minute
HAZARD SWITCH
INSPECTION
Check for continuity between terminals at each switch position as
shown below. if check result is not as specified, replace.
FRONT FOG LIGHTS (IF EQUIPPED)
FRONT FOG LIGHT SWITCH
INSPECTION
Check for continuity between terminals at each switch position as
shown below. if check result is not as specified, replace.
1
2
Hazard SWTerminal
OFF
ON+B TR+ IG TRS TLL TLR IL ILE
Switch
PositionTerminal
ONIG LOAD E IL ILE
OFF

8-22 BODY ELECTRICAL SYSTEM
INSPECTION
Check for continuity between terminals at each switch position as
shown below.
If check result is not as specified, replace.
INTERMITTENT WIPER RELAY CIRCUIT INSPECTION
1) Turn the front wiper switch to “INT” position.
2) Connect battery positive terminal to terminal “B3” and its
negative terminal to terminal “HE”
3) Connect voltmeter positive lead to terminal “H” and its nega-
tive lead to terminal “HE”.
4) Check that the voltmeter indicates the battery voltage (10 -
14 V).
5) Connect terminal “AS” and terminal “B3” by a jumper wire.
6) When “B3” and “HE” are shorted by other jumper wire, check
that voltage changes as shown in figure.
If check result is not satisfied, replace.
[A] : LH steering vehicle
[B] : RH steering vehicle
INT
WASHER ONLO
[A]
[B]HI
AS AS
L L
H H
B3 B3
W W
HI LO INT OFF
PULL
Terminal
Wiper SW
OFF
INT
LOB3 H L AS
HI
Terminal
Washer SW
OFF
ONB3 W
[A] : LH steering vehicle
[B] : RH steering vehicle
AS L H B3 W
HU
HL RF B2 M HE
AS
L
H B3
W
HU
HL RF
B2 M HE [A]
[B]
10-14V Voltage between “B3” and “HE”
3.8±1 sec.
Short between “B3” and
“HE” terminals

IMMOBILIZER CONTROL SYSTEM 8G-3
WIRING CIRCUIT
1. Immobilizer Control Module 4. Ignition switch 7. Data link connector
2. ECM 5. Fuse 8. To ABS control module, SDM and TCM
3. Main relay 6. Main fuse 9. Immobilizer indicator lamp
BRN/WHT
BLK/RED
BLK/WHT
PNK
BLK/RED
BLK/WHT
BLK
BLK
BLK/ORG
BLK/ORG
BLU
YEL
YEL
BLK/YEL
6
G02-7 G02-5
C42-2
C42-1
C42-3 C41-10
C41-5/6
G02-6
G02-12
G06-4
G06-3
G06-1G06-2
3
45 5
2
8
97
1
BB
BB

8G-10 IMMOBILIZER CONTROL SYSTEM
TABLE A - IMMOBILIZER INDICATOR LAMP CHECK (IMMOBILIZER INDICA-
TOR LAMP DOES NOT LIGHT AT IGNITION SWITCH ON)
WIRING DIAGRAM
INSPECTION
1. Main fuse 2. Main relay 3. ECM 4. Immobilizer indicator lamp
BRN/WHT
BLK/RED
BLK/WHT
PNKBLK
BLK/ORG
BLK/ORG
BLK/YEL
C42-2
C42-1
C42-3 C41-10
C41-5/6
G02-6
G02-12
4
1
2
3
Step Action Yes No
1 1) Turn ignition switch ON.
Do other indicator/warning lights in combination
meter come ON?Go to Step 2.“IG” fuse blown, main fuse
blown, ignition switch mal-
function, “BLK/WHT” circuit
between “IG” fuse and com-
bination meter or poor cou-
pler connection at
combination meter.
2 1) Turn ignition switch OFF and disconnect
connectors from ECM.
2) Check for proper connection to ECM at ter-
minal G02-12.
3) If OK, then using service wire, ground termi-
nal G02-12 in connector disconnected.
Does immobilizer indicator lamp turn on at igni-
tion switch ON?Substitute a known-
good ECM and
recheck.Bulb burned out or “PNK”
wire circuit open.

IMMOBILIZER CONTROL SYSTEM 8G-11
TABLE B - IMMOBILIZER INDICATOR LAMP CHECK (IMMOBILIZER INDICA-
TOR LAMP REMAINS ON AFTER ENGINE STARTS)
WIRING DIAGRAM
INSPECTION
1. Main fuse 2. Main relay 3. ECM 4. Immobilizer indicator lamp
BRN/WHT
BLK/RED
BLK/WHT
PNKBLK
BLK/ORG
BLK/ORG
BLK/YEL
C42-2
C42-1
C42-3 C41-10
C41-5/6
G02-6
G02-12
4
1
2
3
Step Action Yes No
1 1) With ignition switch OFF, disconnect cou-
plers from ECM.
Does immobilizer indicator lamp turn ON at
ignition switch ON?“PNK” wire shorted to
ground circuit.Substitute a known-good
ECM and recheck.

IMMOBILIZER CONTROL SYSTEM 8G-15
DTC13 NO TRANSPONDER CODE TRANSMITTED OR COIL ANTENNA
OPENED/SHORTED
DESCRIPTION
Immobilizer Control Module energizes the coil antenna when the ignition switch is ON and reads Transponder
code from the ignition key. When Immobilizer Control Module cannot read Transponder code from the ignition
key even when the coil antenna is energized, this DTC is set.
INSPECTION
Fig. 1 for Step 1
1. Main fuse 2. Main relay 3. Immobilizer Control Module 4. Coil antenna 5. To ECM
BLK/RED
BLK/YEL
G06-4
2
3
4 5
1
Step Action Yes No
1 Check that knob shape and color for igni-
tion key are as shown below.
Knob color : Dark gray
Knob shape : the same as shown in
Fig.1.
Is it the original one?Substitute a known-good Immobilizer
Control Module and recheck.
See NOTE below.Replace ignition
key with original
one and follow
“Diagnostic Flow
Table” again.
NOTE:
After replacing with a known-good Immobilizer Control Module, register ECM/Immobilizer Control
Module code in ECM and Transponder code and ECM/Immobilizer Control Module code in Immobilizer
Control Module by performing procedure described in “PROCEDURE AFTER IMMOBILIZER CON-
TROL MODULE REPLACEMENT” in this section.