Wiring Diagrams for Lexus SC I (1991-2001)
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Description:Engines: 3.0L, 4.0L
- Systems: 62 Components: 1215
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List of systems:
List of components:
ANTI-LOCK BRAKE SYSTEM
ANTI-LOCK BRAKES SYSTEM
IGNITION COIL 1
IGNITION COIL 2
IGNITION COIL 3
IGNITION COIL, IGNITER 1
IGNITION COIL, IGNITER 2
IGNITION COIL, IGNITER 3
IGNITION COIL, IGNITER 4
IGNITION COIL, IGNITER 5
IGNITION COIL, IGNITER 6
IGNITION COIL, IGNITER 7
IGNITION COIL, IGNITER 8
IGNTION COIL, IGNITER 1
IGNTION COIL, IGNITER 2
IGNTION COIL, IGNITER 3
IGNTION COIL, IGNITER 4
IGNTION COIL, IGNITER 5
IGNTION COIL, IGNITER 6
IGNTION COIL, IGNITER 7
IGNTION COIL, IGNITER 8
LEFT HORN
LOCK IN SAUT LP
LOCK ON
PLOCK PKB LOCK CHG-
RIGHT HORN
STEREO POWER AMPLIFIER
STEREO POWER AMPLIFIER CD AUTOMATIC CHANGER
TAIL HORN SRLY
TELEPHONE TRANSCEIVER
TRANSPONDER KEY AMPLIFIER
ABS ECU
ABS, TRACTION ECU
COOLING FAN ECU
DRIVER'S POWER SEAT ECU
DRIVER'S POWER SEAT ECU SHIELD
ECU-B FUSE
ECU-IG FUSE
ECU-IG FUSE ECU-B FUSE
ECU-IG FUSE GAUGE FUSE
FUEL PUMP FUEL PUMP ECU
HOT AT ALL TIMES RAD 2 FUSE ECU-B FUSE
HOT IN ON OR START ECU-IG FUSE
MSW VC ECU-B
POWER SEAT ECU
PPS ECU
REMOTE CONTROL MIRROR ECU
SHIFT LOCK ECU
TAIL FUSE MG CLT RELAY COOLING FAN ECU
THEFT DETERRENT, DOOR LOCK ECU
TILT, POWER TELESCOPIC ECU
TILT, POWER TELESCOPIC ECU, MOON ROOF CONTROL RELAY
WIRELESS DOOR LOCK CONTROL ECU
ALT SENSING FUSE
CIG FUSE
DEF FUSE
DOME FUSE
DOOR FUSE
DRL FUSE
EFI FUSE
ENGINE FUSE
ETCS FUSE
FOG FUSE
GAUGE FUSE
HAZ-HORN FUSE
HEAD LH UPR FUSE
HEAD RH UPR FUSE
HOT AT ALL TIMES IGN FUSE STOP FUSE
HOT AT ALL TIMES STOP FUSE
HOT IN ACC OR ON RADIO 2 FUSE
HOT IN ON OR START GAUGE FUSE
HOT IN RUN GAUGE FUSE
HTR FUSE
IG SW FUSE
IGN FUSE
IGN FUSE ST FUSE
IGSW FUSE
INJ FUSE
JUNCTION BLOCK 1 OBD FUSE
JUNCTION BLOCK 1 ST FUSE
MAIN FUSE
MIR HTR FUSE
MIRHTR FUSE
OBD FUSE
PANEL FUSE
POWER FUSE
PWR FUSE
RADIO 1 FUSE
RADIO 2 FUSE
RADIO FUSE 1
RADIO FUSE 2
SEAT HTR FUSE
ST FUSE
STOP FUSE
STOP FUSE OBD FUSE
TAIL FUSE
TEL FUSE
TURN FUSE
WIPER FUSE
ABS MOTOR RELAY
ABS MTR RELAY ABS SOL RELAY
ABS SOL RELAY
AUTO ANTENNA CONTROL RELAY
BLOWER MOTOR CONTROL RELAY
DAYTIME RUNNING LIGHT RELAY 3
DAYTIME RUNNING LIGHT RELAY 4
DEF RELAY
DEFOGGER RELAY
EFI MAIN RELAY
EFI RELAY
FOG LIGHT RELAY
FOGLIGHT RELAY
FOGLIGHT RELAY, LEFT LOW BEAM HEADLIGHT
FROM MAIN FUSE, RELAY BLOCK 2 DIAGRAM 1 OF 3)
HEAD RELAY
HEADLIGHT RELAY
HORN RELAY
HORN RELAY, HAZARD SWITCH, THEFT DETERRENT HORN
HOT AT ALL TIMES RELAY BLOCK 2 ETCS FUSE
HOT W/DEF RELAY ENERGIZED
HOT W/TAILLIGHT RELAY ENERGIZED
HOT WITH TAILLIGHT RELAY ENERGIZED
HTR RELAY
HTR RELAY, MG CLT RELAY DEF RELAY, A/C CONTROL ASSEMBLY, WATER VALVE VSV
IGNITION MAIN RELAY
INTEGRATION RELAY
LEFT HI BEAM HEADLIGHT DAYTIME RUNNING LIGHT RELAY 4
MG CLT RELAY
MOON ROOF CONTROL RELAY
POWER MAIN RELAY
POWER MAIN RELAY POWER CIRCUIT BREAKER
RELAY BLOCK 2
RELAY BLOCK 2 ETCS FUSE
SPEAKER RELAY
STARTER RELAY
STEREO POWER AMPLIFIER, RADIO, PLAYER, AUTO ANTENNA MOTOR, RELAY, D/A CONVERTER
TAILLIGHT RELAY
TELEPHONE TRANSCEIVER/ SPEAKER RELAY
WIPER MOTOR IGNITION MAIN RELAY
A/C CONTROL ASSEMBLY, SHIFT LOCK ECU AIR BAG SENSOR ASSEMBLY
AIR BAG SENSOR ASSEMBLY
AUTOMATIC LIGHT CONTROL SENSOR
DRIVER'S SEAT SLIDE POSITION SENSOR
ENGINE CONTROL MODULE, LICENSE PLATE LIGHTS, LIGHT FAILURE SENSOR
FRONT VERTICAL POSITION SENSOR DRIVER'S SEAT RECLINE MOTOR
HEATED OXYGEN SENSOR BANK 1 SENSOR 1
HEATED OXYGEN SENSOR BANK 1 SENSOR 2
HEATED OXYGEN SENSOR BANK 2 SENSOR 1
HEATED OXYGEN SENSOR BANK 2 SENSOR 2
LIGHT FAILURE SENSOR
REAR VERTICAL POSITION SENSOR
TELESCOPIC POSITION SENSOR
THEFT DETERRENT, DOOR LOCK CONTROL ECU, AIR BAG SENSOR ASSEMBLY
TILT POSITION SENSOR
A/C CONTROL SWITCH, RADIO SWITCH
A/C CONTROL, RADIO SWITCH LAMP
A/C DUAL PRESSURE SWITCH
A/C SINGLE PRESSURE SWITCH
A/C, RADIO CONTROL SWITCH
BRAKE FLUID LEVEL SWITCH
COMBINATION SWITCH
COMBINATION SWITCH TURN SIGNAL SWITCH
CRUISE CONTROL SWITCH
DIMMER SWITCH
DOOR OPEN DETECTION SWITCH LH
DOOR OPEN DETECTION SWITCH RH
DRIVER'S POWER SEAT CONTROL SWITCH
DRIVING POSITION MEMORY, RETURN SWITCH
ELECTRONIC CONTROLLED TRANSMISSION PATTERN SELECT, SEAT HEATER SWITCH
ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH
ENGINE HOOD COURTESY SWITCH
ENGINE OIL LEVEL WARNING SWITCH
FOGLIGHT SWITCH
FUEL LID OPENER SWITCH
GLOVE BOX LIGHT SWITCH
HAZARD SWITCH
HAZARD SWITCH LAMP
HIGH FLASH LO TAIL HEAD AUTO OFF LIGHT CONTROL SWITCH
HORN SWITCH
HOT W/LIGHT SWITCH IN TAIL OR HEAD
IGNITION SWITCH
KEY UNLOCK WARNING SWITCH
LEFT BUCKLE SWITCH
LEFT DOOR KEY LOCK/ UNLOCK SWITCH
LEFT DOOR LOCK/ UNLOCK MOTOR, DOOR DETECTION POSITION SWITCH
LEFT DOOR OPEN DETECTION SWITCH
LEFT DOOR UNLOCK, DOOR OPEN DETECTION SWITCH
LEFT FRONT DOOR KEY LOCK/UNLOCK SWITCH
LEFT LOCK/ UNLOCK MOTOR, DOOR DETECTION POSITION SWITCH
LEFT POWER WINDOW MASTER SWITCH, DOOR LOCK CONTROL SWITCH
LH SELECT SWITCH RH
LIGHT CONTROL SWITCH COMBINATION SWITCH
LOCK SWITCH
LUGGAGE COMPARTMENT DOOR OPEN SWITCH
LUGGAGE COMPARTMENT DOOR OPENER SWITCH
LUGGAGE COMPARTMENT KEY UNLOCK SWITCH
LUGGAGE COMPARTMENT LIGHT SWITCH
MASTER POWER WINDOW/DOOR LOCK CONTROL SWITCH
MOON ROOF CONTROL SWITCH
MOON ROOF LIMIT SWITCH
OPERATION SWITCH
PARK/ NEUTRAL POSITION SWITCH
PASSENGERS POWER SEAT CONTROL SWITCH
POWER STEERING OIL PRESSURE SWITCH
POWER WINDOW MASTER SWITCH
RADIO TEMP CONTROL SWITCH
REMOTE CONTROL MIRROR SWITCH
RIGHT DOOR KEY LOCK/ UNLOCK SWITCH
RIGHT DOOR LOCK CONTROL SWITCH
RIGHT DOOR LOCK MOTOR, DOOR UNLOCK DETECTION SWITCH, OPEN DETECTION SWITCH
RIGHT DOOR OPEN DETECTION SWITCH
RIGHT DOOR UNLOCK, DOOR OPEN DETECTION SWITCH
RIGHT FRONT DOOR KEY LOCK/UNLOCK SWITCH
RIGHT FRONT DOOR LOCK CONTROL SWITCH
RIGHT LOCK/ UNLOCK MOTOR, DOOR DETECTION POSITION SWITCH
RIGHT POWER WINDOW CONTROL SWITCH
SEAT HEATER SWITCH
SELECT SWITCH
SHIFT LOCK CONTROL SWITCH
TRACTION CUT SWITCH
TRANSMISSION CONTROL SWITCH
TRIP SWITCH, THEFT DETERRENT
UP OPERATION SWITCH
WASHER LEVEL SWITCH
WASHER MOTOR, WIPER/WASHER SWITCH, WIPER MOTOR
WASHER SWITCH
WIPER SWITCH
3 4 5 6 7 8 9 10 PNK WIRE
4 5 6 7 8 9 10 PNK WIRE
5 11 12 PNK WIRE
(OR RED/ WIRE
BLK RED/ WIRE
BLK WIRE
BLK/ WHT WIRE
BLK/BLU WIRE
BLK/ORG WIRE
BLK/RED WIRE
BLK/WHT WIRE
BLK/YEL WIRE
BLU RED/ WIRE
BLU WIRE
BLU/ WHT WIRE
BLU/ YEL WIRE
BLU/BLK WIRE
BLU/GRN WIRE
BLU/ORG WIRE
BLU/RED WIRE
BLU/WHT WIRE
BLU/YEL WIRE
BRN WIRE
BRN/WHT WIRE
GRN WIRE
GRN/ WHT WIRE
GRN/ YEL WIRE
GRN/BLK WIRE
GRN/BLU WIRE
GRN/ORG WIRE
GRN/RED WIRE
GRN/WHT WIRE
GRN/YEL WIRE
GRY WIRE
GRY/BLU WIRE
GRY/RED WIRE
LT GRN WIRE
LT GRN/BLK WIRE
LT GRN/RED WIRE
NCA WIRE
NCO+ PNK WIRE
ORG/ WIRE
PNK 1 2 3 4 5 6 7 8 9 WIRE
PNK 5 6 WIRE
PNK 22 23 24 25 WIRE
PNK DOOR LOCKS SYSTEM WIRE
PNK WIRE
PNK/BLK WIRE
PNK/BLU WIRE
RED WIRE
RED YEL/ WIRE
RED/ BLU WIRE
RED/ WHT WIRE
RED/BLK WIRE
RED/BLU WIRE
RED/GRN WIRE
RED/WHT WIRE
RED/YEL WIRE
RUN WIRE
SLU+ SLN+ SLT+ NCO- PNK WIRE
TR TAM TE TW TS PNK WIRE
VIO WIRE
VIO/WHT WIRE
WHT BLK/YEL WIRE
WHT RED/ WIRE
WHT WIRE
WHT/ BLK WIRE
WHT/ BLU WIRE
WHT/BLK WIRE
WHT/BLU WIRE
WHT/GRN WIRE
WHT/RED WIRE
WHT/YEL WIRE
YEL BLK/ WIRE
YEL BLU/ WIRE
YEL GRN/ WIRE
YEL WIRE
YEL/BLK WIRE
YEL/GRN WIRE
YEL/RED WIRE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 SFRR SFRH
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 SO DSW
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 SYSB SLSW PVCC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND SLD+ RCL+ FRV+ +B STOP IG
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MHR MVR M+R +B HSRR VSRR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RL- RR+
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 GRD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 TXM+ SGND
1 2 3 4 5 6 7 8 9 10 11 12 CDR+ CDL+
1 2 3 4 5 6 7 8 9 10 11 12 IG TEM+ TIM- +B
1 2 3 4 5 6 7 8 9 10 11 12 MR FL- FR+ AST SFLH SFLR SR FL+ FR- MT SRH SRR
1 2 3 4 5 6 7 8 9 10 11 12 SFLR SFLH
1 2 3 4 5 6 7 8 9 10 IGB SOL+ SOL-
1 2 3 4 5 6 7 8 9 10 TO ACT- ACT+
1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 PWRL
1 2 3 4 5 6 IG
1 2 3 4 5 6 SWE SWRV SWB SWRH SWLH SWLV
1 2 3 4 PWRL
1 2 3 7 8 10 SVCC SIG SGND SOLID STATE
1 2 3 8 9 10 16 BATT SNWL SNWI
1 2 3 8 9 11 12 SI DSW
1 2 3 BATT SNWL SNWI DI FPC
1 2 5 6 7 8 AC STA TC STP 3
1 7 8 9 10 16 BATT +BM
2 3 TC STP
2 IND
3 IND
3.0L
3.0L, 4.0L
4 IND
4.0L
5 6 23 TC STP CCS
6 11 15 20 STP PWR
9 10 EOM KSW TPC IMLD TXCT RXCK CODE
11 6 4 14 2 5 6 7 8 ANT+B IG GND
11 12 13 TAIL H-LP
12 13 3 1 2 3 ANTB ANTA +B
12 13 14 15 16 17 18 19 20 21 22 23 B+
13 14 15 16 17 SLU+ SLN- SLT- PI OIL
14 2 1 15 3 TS WA TC D/G WT
18 23 26 PTNK CCS
20 22 21 14 20 15 TRC- NEO EFI- EFI+
21 11 8 24 TS WA TC D/G
+B FR- FL-
+B MH MC MFRS MREC IG+ TR MFACE MDEF
+BM
A/C ACMG IDL
A/C AND ELECTRONIC POWER STEERING SYSTEMS
A/C CONTROL ASSEMBLY
A/C CONTROL ASSY
A/T OIL TEMP
ABS 1 FUSIBLE LINK
ABS IND.
ABS W/ TRACTION CONTROL
ABS W/O TRACTION CONTROL
ACIS BRAIDED
ACTD PRLY IG
AIR CONDITIONING SYSTEM
ALT FUSIBLE LINK
AMOUT REOST WV MGC TC TAIL
AMP RR RL BEEP GND SGND
ANTB ANTA ANT
ANTI-THEFT
ANTI-THEFT SYSTEM
AST MR
AUTO DOWN MODULE
AUTO SW
B+ TXM- MUTE
BLW HR RDFGR CFAN
BRAIDED BRAIDED
BRAKE IND
CD PLAYER
CDL+
CDR- CDL-
CDR- CDR+ CDL- CDL+
CG SG
CHARGE IND
CHARGING WARNING LIGHT
CIGARETTE LIGHTER
CL+ SLU- SLN- SLT- OIL 13 14 15 17
CL-
CLOCK/ OUTSIDE TEMP
CLOSE OPEN
COMBI- NATION METER
COMBINATION METER
COMBINATION METER TAIL
CRUISE CONTROL SYSTEM
CRUISE IND
D IND
D/A CONVERTER
DASH HARN, BEHIND COMBINATION METER)
DEF FACE
DEFOGGER SYSTEM
DOOR FUSIBLE LINK
DOOR IND
DOOR OPEN WARNING LIGHT
DRIVE MONITOR
DSWP KSW LSWP
ECUE SO MRY
EVG 2
FR FL MUTE
FR RECIRC
FR+ FL+ RR+ RR- FR- FL-
FROM JUNCTION
FRONT VERTICAL
FRONT VERTICLE
FUEL INJECTOR 1
FUSIBLE LINK
GND B+ SI
HEAD IND
HEAD OFF TAIL
HEADLIGHTS SYSTEM
HF HI DIM
HIGH BEAM IND
HIGH MOUNTED STOP LIGHT
HIGH OFF
HOT AT ALL TIMES
HOT AT ALL TIMES HOT IN START OR RUN
HOT COOL
HOT IN ACC OR ON
HOT IN ACC OR RUN
HOT IN ACCY OR RUN
HOT IN ON OR ACC
HOT IN ON OR START
HOT IN RUN
HOT IN RUN OR ACCY
HOT IN RUN OR START
HOT IN START
HOT IN START OR ON
HOT IN START OR RUN
IDL TAC COOL HP TH+ TH-
IG SPD
IG STP
IGB SOL+ SOL- 2 3 4 5 6 7 8 9 10
IGN A/C IN
IGNITION KEY CYLINDER LIGHT
IGSW MREL +B
IGSW MREL SIL TRC+ ENG+ +B TRC- ENG- NEO
IGSW MREL SIL TRC+ ENG+ NEO +B TRC- ENG- EC
ILLUM ANTB
ILLUM TLMT ANTA
IMLD EOM PI CCV STI- 4 10
INJECTOR 1
INJECTOR 2
INJECTOR 3
INJECTOR 4
INJECTOR 5
INJECTOR 6)
INNER MIRROR
INSTRUMENT CLUSTER SYSTEM
INT TIME
JUNCTION BLOCK 1
JUNCTION BLOCK 3
JUNCTION BLOCK 3 (BEHIND CENTER
KLS+
KNKR KNKL OCV- OCV+
KSW LSWD LSWP IG CTY
L IND
LA D- D+ TC
LBL+ EFI+ CSW
LBL- EFI-
LEFT FRONT
LEFT FRONT FOG LIGHT
LEFT FRONT PARKING LIGHT
LEFT FRONT SIDE MARKER LIGHT
LEFT FRONT TURN LIGHT
LEFT FRONT TURN SIGNAL LIGHT
LEFT REAR COMBINATION LIGHT
LEFT REMOTE CONTROL MIRROR
LEFT RIGHT
LEFT TURN IND
LEFT TURN SIGNAL IND
LEFT VANITY LIGHT
LEFT/ RIGHT UP/ DOWN
LICENSE PLATE LIGHT
LOW FUEL IND
LOW/ MIST INT
LT SC 300 ONLY
LUG HEAD SH IND TSW DSWH LSWD
LUMBAR SUPPORT
M- M+
MAIN FUSIBLE LINK
MALFUNCTION IND
MANUAL SW
MHL MVL M+L GND
MOBILE PHONE
MTR + MTR -
MUTE +B CDR- CDL- GND TXM- TXM+
MUTE BUS+ BUS-
MUTE FL FR ANT
N IND
NE- NE NSW IGF
NE- NE+
NEO STP
NO. 1
NO. 2
NO. 3
NO. 4
NOISE FILTER
OCR-
OF DASH)
OFF TAIL
OIL IND
OIL LEVEL IND
OIL TEMP OIL LEVEL
P IND
P+ P-
PERSONAL LIGHT
POWER FUSIBLE LINK
POWER IND
PS OCV- OCV+ CL- CL+
PWR IND
R - L -
R IND
R+ L+ SGND MUTE
RADIO, PLAYER
RADIO/CD PLAYER
RE RL RV
REAR LIGHT WARNING LIGHT
REAR LT IND
REAR VERTICLE
REAR WINDOW DEFOGGER
RES+
RESET+
RH LH
RIGHT FOG LIGHT LEFT FOG LIGHT
RIGHT FRONT
RIGHT FRONT FOG LIGHT
RIGHT FRONT PARKING LIGHT
RIGHT FRONT SIDE MARKER LIGHT
RIGHT FRONT TURN LIGHT
RIGHT FRONT TURN SIGNAL LIGHT
RIGHT HIGH BEAM HEAD- LIGHT
RIGHT LEFT
RIGHT REAR COMBINATION LIGHT
RIGHT REMOTE CONTROL MIRROR
RIGHT TURN IND
RIGHT TURN SIGNAL IND
RIGHT VANITY LIGHT
RIGHT VANITY LIGHT INNER MIRROR
RL RR
RL+ RL- B+
RR+ RL+ RR- WF+ WF- RL-
RSPD PTNK CCS A/C
SC 300
SC 400
SC 400 ONLY
SEAT BELT IND
SEAT BELT WARNING LIGHT
SET-
SET/ COAST
SG TEL IN TP TPI SPD TPM
SGND GND BEEP RL RR
SGND GND SLD-
SI SO SSR-
SLD- RCL- FRV- RRV- RRV+
SLDR SLDF SLD+ +B PD RFSW SSRS PBCL RRSW
SLN-
SLS+ SLS-
SLT-
SLU+
SLU+ SLN+ SLT+ NCO-
SLU- SLN- SLN- SLT-
SNOW IND
SOL- SOL+
SOLID STATE
SPC SFRR
SPEEDOMETER/ ODOMETER/ TRIPMETER
SR MT R+ SRRR SRRH
SRC SMC SRLH SRLR SFRH TS D/G IND FR+ FL-
SRS IND
SRS WARNING LIGHT
SSRR SSRV SSRS SO SSR-
STARTING CIRCUIT
STARTING/ CHARGING SYSTEM
STARTING/ CHARGING SYSTEM INSTRUMENT CLUSTER SYSTEM
STARTING/CHARGING SYSTEM
STEP LIGHT
STI- PWR ACMG 12 13 16
STOP LIGHT
STP, BK
SUPPLEMENTAL RESTRAINTS SYSTEM
TACH STA
TC RL- RR+ WA
TELESCO LONG
TELESCO SHORT
TES TIS ECUE SO UWSW MRY
TH+
THA VTA
THW VPA
TILT DOWN
TILT UP
TIM+ TEM-
TO JUNCTION
TPC PWR ELS ACMG IDLO
TRAC IND
TRAC OFF
TRAC OFF IND
TRANSMISSION SYSTEM
TRC+
TS RL+ RR- D/G
TURN SIGNAL
TURN SIGNAL FLASHER
TXCT CODE RXCK KSW 4
TXM+ CDR+ CDL+ TXM- CDR- MUTE
TXM- TXM+
UL +B
UP DOWN
VC CL-
VC HSRL VSRL SI
VC HTR HTL 1 2 PRG CL-
VC HTR HTL 10 20 EVAP
VERTICAL FRONT
VERTICAL REAR
VOLC PWR
VPA THA VVR- VVL-
VTA THW
VTA THW VVR+ VVL+
W/ MEMORY
W/ MEMORY W/O MEMORY
W/ TRACTION CONTROL
W/O MOON W/ MOON ROOF ROOF
W/O TRACTION CONTROL
WA WB
WARNING SYSTEM
WASHER LEVEL IND
WATER TEMP
WATER TEMPERATURE SENDER
WF+ WF-