Question about 1992 Daihatsu Rocky

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After alternator replacement, brake and battery lights are on, have checked charging circuit, ok, also O2 sensor light is on even though I have replaced the O2 sensor after 80,000 miles. How do I reset ECU to get these lights to go of?

Posted by winchelt618 on

  • Peter Bright Feb 14, 2013

    Do you have any information, like a step by step, on how to replace the alternator on your rocky? Mines just gone and i need to replace it. But dont want to ruin what appears to be a complex fix.

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Abdulla Tokhie

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To reset the ECU module, you have to remove the positive connection on the battery terminal, set it aside, and then in the fuse box take out the ecu fuse let is sit for 10 minutes then plug in the fuse, and secure the positive connection on the battery terminal. that should reset the ecu module. you will see some gains in performance, this should clear the lights.

Posted on Jun 09, 2011

Testimonial: "I tried the suggested method, but it did not reset the lights. Perhaps there is some other trick to it. Thank you for your prompt reply. "

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2 Answers

I bought a new battery and it went dead. I pulled up a trouble code that reads B1235 right rear speed sensor circuit open/shorted history current is this the reason for the battery drainage so fast?


no never ,,,think you have a faulty alternator diode ,causing the battery to drain ,,,best advice ? call a local mechanic and get them to check it out for you

Dec 03, 2015 | Cars & Trucks

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Replaced the battery and alternator, battery still dies


ok so your acid level in the battery needs to be checked if its at the right level get another battery because there are dead cells in it. if the alternators good check it to be sure even new parts can be bad. ok same problems with a good alternator bad battery. Hope this helps

Feb 19, 2015 | 1999 Chevrolet Blazer

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Red spanner warning light


Brake Light. Make sure you are not driving with hand brake on. Check brake-fluid level. Top off brake fluid if low and make appointment to check brakes. Driving with brake light can be dangerous; deal with this soon. Call tow truck or drive carefully and slowly to shop.
ABS (antilock brake system) Light. Indicates either low brake-fluid level, stuck brake caliper or faulty ABS. Check brake fluid and make appointment to get brakes checked. Call tow truck or drive carefully and slowly to shop.
Oil Light. Either engine is very low on oil or there is no oil pressure. Pull over and turn off engine immediately. Check oil level and add oil if low. Turn engine back on to see if light has gone off. If oil light is still on, bad oil pump (no oil pressure) is likely. Call tow truck.
Check Engine Light. Car's computer senses engine problem. Difference in performance may not be noticeable, but make appointment to have car diagnosed. This usually cost around $65-$75 to do. OK to drive. If problem is serious, computer may switch to limp-home (low-power) mode and you won't have option of waiting to bring car into shop.
Air Bag Light. Get air bags checked. Problem could prevent them from activating in accident. OK to drive, but not safe in accident.
Battery Charge Light. Alternator is not charging. OK to drive, but turn off any unneeded electrical devices (radio, heater, defroster) and avoid starting engine more than necessary. Bring car into shop soon to avoid getting stranded. When alternator is not charging, battery loses charge and car stops working.
Emissions Lights (O2 sensor, EGR, check emissions). Depending on car model, these lights may indicate problem with emissions sensor or may light up at certain mileage, usually 60,000 miles (100,000 km). Get sensors checked. OK to drive. If problem exists, car might get poor gas mileage.
OBD Tools 365 Days Shop

Aug 14, 2014 | Cars & Trucks

2 Answers

2001 Chevy Cavalier computer problem


A red light on the dashboard can mean you should stop driving right away, or you may have a little time before you have to bring your car into the shop. Know what's what so you don't get stuck.
  1. Critical Warning Lights
    • 1 Brake Light. Make sure you are not driving with hand brake on. Check brake-fluid level. Top off brake fluid if low and make appointment to check brakes. Driving with brake light can be dangerous; deal with this soon. Call tow truck or drive carefully and slowly to shop.
    • 2 ABS (antilock brake system) Light. Indicates either low brake-fluid level, stuck brake caliper or faulty ABS. Check brake fluid and make appointment to get brakes checked. Call tow truck or drive carefully and slowly to shop.
    • 3 Oil Light. Either engine is very low on oil or there is no oil pressure. Pull over and turn off engine immediately. Check oil level and add oil if low. Turn engine back on to see if light has gone off. If oil light is still on, bad oil pump (no oil pressure) is likely. Call tow truck.
    Maintenance Lights
    • 1 Check Engine Light. Car's computer senses engine problem. Difference in performance may not be noticeable, but make appointment to have car diagnosed. This usually cost around $65-$75 to do. OK to drive. If problem is serious, computer may switch to limp-home (low-power) mode and you won't have option of waiting to bring car into shop.
    • 2 Air Bag Light. Get air bags checked. Problem could prevent them from activating in accident. OK to drive, but not safe in accident.
    • 3 Battery Charge Light. Alternator is not charging. OK to drive, but turn off any unneeded electrical devices (radio, heater, defroster) and avoid starting engine more than necessary. Bring car into shop soon to avoid getting stranded. When alternator is not charging, battery loses charge and car stops working.
    • 4 Emissions Lights (O2 sensor, EGR, check emissions). Depending on car model, these lights may indicate problem with emissions sensor or may light up at certain mileage, usually 60,000 miles (100,000 km). Get sensors checked. OK to drive. If problem exists, car might get poor gas mileage.

Oct 31, 2011 | 2001 Chevrolet Cavalier

2 Answers

1992 Daihatsu Rocky O2 sensor light on even after replacement of O2 sensor before 80,000 miles. Brake and Battery lights on after replacement of Alternator. Have checked the charging and the braking...


I have a Daihatsu rocky I'm working on with the same thing going on with the o2s light. Staying on .. 88k miles on a 1990 1.69l .. If you find how to turn it off wright me

Jun 09, 2011 | 1992 Daihatsu Rocky

1 Answer

Check engine came on I replaced the o2 sensor. check engine light


You need to know what codes you have stored
Your O2 Sensor, may not be the problem,even though you get an O2 Code. That may just be the symptom

May 31, 2010 | 1993 Dodge Caravan

1 Answer

2001 Dodge Grand Caravan battery light is on. Battery and alternator have been checked and are ok. What could be wrong?


The alternator has a bad diode in the diode bridge in the alternator,this turns the light on,even though the alternator checks good,and is charging correctly,there is a bad diode,this diode ,along with others,changes ac voltage to dc voltage,if not replaced,it will start causing components to go out.

Feb 08, 2010 | 2001 Dodge Grand Caravan

1 Answer

Check engine light with 4 codes


The surging is from the alternator not charging enough volts.Check the volts at the battery,while it is running,it should read about 13.65 to 14.25 volts,if it is less than this replace the alternator,it should be checked with the head lights on,and fan on high blower setting.

Nov 02, 2009 | 1997 Honda Civic

2 Answers

Replaced alternator on a 2002 ford taurus, still showing low voltage engine light still coming on


You have to test the alternator output, should be about 14 - 16 volts.

Test your battery too, fully charged battery should be about 13 volts.

If these check out ok, the problem is the sensor or the wiring in the sensor circuit

Jul 01, 2009 | 1999 Ford Taurus

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