EIC out????

blowout · Aug 27, 2013

So about 3 years ago the fuel gauge in my 2004 LS170 started acting weird. I talked to my local dealer and they said to take out the fuel assembly in the tank and clean the slides the float rides on. Did the cleaning and it seemed to work for a day or two but it came back. I have been just running it and watching my fuel levels. Now I have been noticing that the engine temp and hydraulic temps on the eic are reading cold even after running for an hour. Sometimes they will show the temo but most of the time it wont. Do I have an EIC going out on me or is there something else?

Mike10 · Aug 28, 2013

Take the wire off the temperature sender and ground it. If the light in the dash lights and the alarm sounds then the circuit is good and the sender is bad. You can do the same with the hyd temp sender. If the lights do not light then you will need to remove the instrument panel and check for continuity between the sender and the instrument panel. If you have continuity then the instrument panel is bad.

blowout · Sep 3, 2013

Mike10 said:
Take the wire off the temperature sender and ground it. If the light in the dash lights and the alarm sounds then the circuit is good and the sender is bad. You can do the same with the hyd temp sender. If the lights do not light then you will need to remove the instrument panel and check for continuity between the sender and the instrument panel. If you have continuity then the instrument panel is bad.

what about for the fuel gauge. I was using it today and it was plum bob full and after about 10 min it was beeping at me and showing it had one bar left.

Mike10 · Sep 4, 2013

blowout said:
what about for the fuel gauge. I was using it today and it was plum bob full and after about 10 min it was beeping at me and showing it had one bar left.

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I forgot to mention you need to be in the diagnostic mode to do the checks. To get in the diagnostic mode do the following.

To Enter Diagnostic Or Setup Mode:

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1. Lower the boom and bucket to the ground or
remove any attachment and rest the boom on the
boom lock pins.
2. Turn .OFF. the ignition key.
3. Unbuckle the seat belt, raise your weight off the
seat, and wait until all EIC lights are off.
4. While out of the seat, press and hold the .OPEN
BOOK. switch, 2, sit in the seat and turn the
ignition key to the .ON. position; Do Not engage
the starter.
5. Display, 3, will show the program level of the EIC
board (example - r0100); at this time, release the
.OPEN BOOK. switch.
6. Display will show .LOC_ _. for lock.
7. Press and release the .ARROW. switch, 1;
.dIAg. (for Diagnostic) will appear in the
character display.
8. Press and release the .ARROW. switch again
will move to the .SEtUP. mode in the display.
Pressing and holding the .OPEN BOOK. switch
when in either mode will enter the selected mode for

tests or changes to the EIC.
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EIC Diagnostics and Setup Items
Diagnostics Mode

With display showing .LOC_ _. for lock.
1. Press and release the .ARROW. switch, 1; .dIAg. will appear in the character display, 2.

2. Press and hold the .OPEN BOOK. switch, 1, until a low case .d. appears in the character display,
2, release the .OPEN BOOK. switch. The EIC is now in Diagnostics.
Each individual monitored circuit can now be tested for proper operation.
When in Diagnostics and any circuit is activated the EIC board will light all lights and an audible alarm will
sound.
The Diagnostic test will not verify the performance of a sensor or sender. Only the EIC board and wires to
the sender or sensor are tested.
The following circuits can be tested:
1. EIC board bulbs
2. EIC board circuits
3. EIC board arrow and open book switches
4. Audible beeper
5. Engine air filter circuit
6. Hydraulic oil filter circuit
7. Hydrostatic transmission charge pressurecircuit
8. Engine oil pressure circuit
9. Engine Coolant temperature circuit
10. Transmission/hydraulic oil temperaturecircuit
11. Fuel level circuit
12. Seat switch(es) and circuit
13. Seat belt switch and circuit

14. Service/Run switch
Checking Fuel Sender Circuit

Disconnect one wire, 1, and use a jumper wire and connect sender terminal to other terminal, 2,
and the EIC board will light and beep. If the EIC board lights and beeps, the EIC and circuit wires
to the sender are OK. If the EIC board fails to light, check the wires to the EIC board.

This procedure is a little confusing. I think what you need to do is remove one wire from the sender and jump from that wire to the other wire still attached to the sender.

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EIC out????

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