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I have a 1993 Toyota corolla. I am trying to figure out what the different fuse names are such as the "IGN 10A, STOP 15A, S-HTR 20A, ECU-B 10A, ECU-IG 15A


Ign is for ign , stop is for brake lights, s heater is for blower motor, ecu is for computer, ecu ign is for distributor, are you looking for a specific problem

Apr 04, 2015 | 1993 Toyota Corolla

3 Answers

Where is the Heater Blower Motor Relay on a 1997 Camry ?


why not post symtoms? is cab heater blower dead on HIGH??????
there are 5 fuses, just related to heat.
the blower relay is in the engine bay box 1 , far end marked HTR.

on high the relay coil 1 and blower pin 1 are grounded
the relay closes, if and only if the 10 amp heater fuse is good.
the relay then outputs 12v to blower in 2 and the motor RUNS.
that is it.
alldata.com read there.
or buy FSM for full facts. and schematics.

Jul 14, 2014 | 1997 Toyota Camry

1 Answer

99 GMC Safari AC fuse has constant 12v even with key off.


power goes from htr a/c fuse to selector switch
and power to blower relay part of resistor module
when you plug resistor key off then no blower because htr fuse current coming from ignition switch
hope it helps

Oct 10, 2013 | 1999 GMC Safari

1 Answer

Blower motor relay


There are two relays in the blower motor circuit. For troubleshooting, check the 10A GAUGE fuse in the engine room junction box which feeds power to the integration relay in that same location. With the ignition lock in ON or START position, power is applied to the HTR relay in engine room relay block 6 and the blower motor operates (provided the 50A HTR fuse in that block is OK)

Oct 27, 2012 | 1999 Toyota Corolla

1 Answer

I need to know what ecu-b, ecu-ig, st, d/l, wip, s/htr stand for on a fuse diagram for a 2001 chevy prizm.


b= body
ig= ignition
st= stereo ?
d/l= door locks ?
wip= wipers
s/htr= seat heater ?

May 17, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

02 sensor heater circut malfunction


htr ckt malfunctions are mostly due to worn or faulty htr elements in ur sensor. i would first chek all ur fuses to make sure u even have voltage going down to ur o2 sensr, if they check out good then safe to say ur o2 sensr is faulty an should b replaced....good luck

May 01, 2011 | 2003 GMC Sonoma Extended Cab

1 Answer

No power windows no ventilation no board lights intermitence


NO POWER WINDOWS CHECK POWER WINDOW 25 AMP CIRCUIT BREAKER. FOR YOUR AC + HTR CONTROL SWITCH CHECK HTR AC IGNITION FUSE 10 AMP FUSE AND CHECK AC BFC FUSE 10 AMP FUSE.

Dec 10, 2010 | 1999 Oldsmobile Alero

1 Answer

What color of wire on factory harness is o2 signal wire for 1993 toyota 4-runner insalling a jet programmer need info for hard wireing


Main oxy sensor
HT pink+green (1)
+B wht+red (2)
OX1 black (3)
E brown (4)

Sub oxy sensor
HT2 grn+red (1)
HTR wht+red (2)
OXR1 wht (3)
E1 brown (4)
These numbers are for 2.4L / 4WD / A/T
Hope this helps.

Mar 01, 2010 | 1993 Toyota 4Runner

1 Answer

My blower motor is good, but when hooked up, nothing happens. Is there a fuse I can check? The wiring schematic says there is, but I can't find one.


Look in the main fuse box. (There are two fuse boxes, one under the hood and the other is under the dash. Or sometimes inside the glovebox.) Look for the the fuse marked HTR or HTR/AC.

Aug 19, 2009 | 1993 Oldsmobile Eighty Eight

1 Answer

Fuel pump fuse blows


Check the fuel pump relay, i am not sure but i think there are two of them. Check the wire harness too, mice may have chewed in to the wires causing a shot in the system. 
Good luck and hope this helps.

May 09, 2009 | Chevrolet Prizm Cars & Trucks

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