SPONSORED LINKS

2000 Honda Accord No communication in the car

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
No, the Multiplex Control System is not the ECU/PCM. It is more commonly known as BCM ( Body Control Module ) and would not trigger any codes on the CEL.
Was this
answer
helpful?
Yes
No
Saturday, August 28th, 2010 AT 12:12 PM
Tiny
DD_110588
  • MEMBER
  • 59 POSTS
Ok well I did what you told me and when I ground the blue & white wire the light gets brighter but it does not shut off when I put the ignition on
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, August 28th, 2010 AT 1:32 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
If it is the door/safety indicators lights that are not turning off, then the Multiplex control unit has a fault. If it is the alternator charge light that stays on brighter, then it is not a problem with the alternator circuit.

If the charge indicator light is not fully bright when ignition switch is turned on and becomes fully bright after disconnecting and grounding the circuit, the alternator is the cause of it. The voltage regulator circuit is bad.
Was this
answer
helpful?
Yes
No
Saturday, August 28th, 2010 AT 2:18 PM
Tiny
DD_110588
  • MEMBER
  • 59 POSTS
So where is the voltage regulator circuit at?
Was this
answer
helpful?
Yes
No
Sunday, August 29th, 2010 AT 12:43 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The voltage regulator in inside the alternator.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, August 29th, 2010 AT 1:12 PM
Tiny
DD_110588
  • MEMBER
  • 59 POSTS
So what now then?
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 9:29 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I have been telling you to get the alternator replaced to test but you have refused to do so.

What else do you expect me to tell you?
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 10:34 AM
Tiny
DD_110588
  • MEMBER
  • 59 POSTS
Ok ill change and ill let you know
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 12:08 PM
Tiny
DD_110588
  • MEMBER
  • 59 POSTS
Hey I put the original one back on and ive never noticed this but when I put the ignition on all the light come on even the battery one and after a few seconds the battery light starts fadding away slowly.
Was this
answer
helpful?
Yes
No
Tuesday, August 31st, 2010 AT 3:43 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
After starting if the charge indicator light remains on dimly. The alternator regulator circuit is bad.

Get another alternator to test. DO NOT reuse any of those you have tried.
Was this
answer
helpful?
Yes
No
Wednesday, September 1st, 2010 AT 8:35 AM
Tiny
DD_110588
  • MEMBER
  • 59 POSTS
The old alternator was bad and the one I bought was good. But I figured it out, there was a bad connection between the harness from the engine to the one that goes in the dash and it was the black and yellow connection.
Was this
answer
helpful?
Yes
No
Wednesday, March 16th, 2011 AT 7:43 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Black/Yellow wire is the main ignition switch wire for power supply to all electrical components. This means your test for continuity and power supply for the charging system was not done correctly.

Glad to know you have fixed the problem.

Have a nice day.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, March 17th, 2011 AT 7:17 PM

Please login or register to post a reply.

Related Engine Computer No Communication Content

VIEW MORE

Sponsored links