Contour Enthusiasts Group Archives Forums Modifications General Mods Resetting ECU...

I know this was previously posted, but should I unplug battery to reset ECU for intake & exhaust mod's? Never did that, how important is it?

The car will learn the new mods quicker if the ECU is reset. Pull under hood fuses listed in the FAQ... 7 and 11 IIRC.

I didn't knew that !!!!

Thanks for asking Groove....

That was a good question, even though a old one....

IIRC it's actually fuse #'s 4 & 11.

On OBDI cars, it is different IIRC. Here is EVERY FUSE and relay.

FUSES
ENGINE COMPARTMENT FUSE BOX
Fuse #, Amp, Color, Circuit
1, 80, Black, Main power
2, 60, Yellow, Engine cooling fan
3, 60, Yellow, ABS braking system, Heater blower motor
4, 20, Yellow, Daytime running lights
5, 15, Light Blue, Fog lamp
6, Not used
7, 20, Yellow, ABS system
8, Not used
9, 20, Light Blue, ECU
10, 20, Light Blue, Ignition switch
11, 3, Violet, ECU memory
12, 15, Light Blue, Horn, Hazard flasher warning system
13, 20, Yellow, Oxygen sensor
14, 15, Light Blue, Fuel pump
15, 10, Red, Low beam, passenger side
16, 10, Red, Low beam, driver's side
17, 10, Red, High beam, passenger side
18, 10, Red, High beam, driver's side

PASSENGER COMPARTMENT FUSE BOX
Fuse #, Amp, Color, Circuit
19, Not used
20, 10, Black, Wiper motors (circuit breaker)
21, 40, Orange, Power windows
22, 7.5, Brown, ABS module
23, 15, Light Blue, Backup lights
24, 15, Light Blue, Brake lights
25, 20, Yellow, Door locks
26, 7.5, Brown, Main light
27, 15, Light Blue, Cigarette lighter
28, 30, Light Green, Electric seats
29, 30, Light Green, Rear window defroster
30, 7.5, Brown, Engine management system
31, 7.5, Brown, Instrument panel illumination
32, 7.5, Brown, Radio
33, 7.5, Brown, Parking lamps - drivers side
34, 7.5, Brown, Interior lights, electric side mirrors, clock
35, 7.5, Brown, Parking lights - passenger side
36, 10, Red, Air bag
37, 30, Light Green, Heater blower motor
38, Not used

RELAYS
ENGINE COMPARTMENT FUSE BOX
Relay, Circuit
R1, Daytime running lights
R2, Radiator fan, high speed
R3, Air conditioning
R4, Air conditioning clutch
R5, Radiator fan, low speed
R6, Starter solenoid
R7, Horn
R8, Fuel pump
R9, Headlight, low beam
R10, Headlight, high beam
R11, ECU module
D1, Reverse voltage protection

PASSENGER COMPARTMENT FUSE B0X
Relay, Circuit
R12, Interior lighting
R13, Rear window defroster
R14, Heater blower motor
R15, Wiper motor
R16, Ignition
D2, Reverse voltage protection

AUXILARY RELAYS (outside of fuse boxes)
Relay, Circuit, Location
R18, One Touch window switch (driver only), Drivers door
R20, Not used
R21, Not used
R22, Foglights, Module bracket
R23, Turn signals, Steering column
R24, Panic alarm, drivers side, Door lock module bracket
R25, Panic alarm, passenger side, Door lock module bracket
R26, Not used

So basically relay 11 and fuses 9 & 11. At least on my car.