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Old 02-17-2014, 03:55 PM   #19
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Originally Posted by yaristar View Post
Hi,
After plugging the connector in pin 20 reads 2.54 and 21 reads 2.6
OK. That is better. It looks like the cluster is connected to the CAN bus. So, the next step is to see if the meter is really alive on the CAN bus using your ELM 327.


What software do you use with your ELM?

Also, have you ever used Hyperterminal (windows' included terminal emulator)?
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Old 02-17-2014, 04:34 PM   #20
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the software i use for my elm is proscan and elm scan master
no i have never used hyperterminal
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Old 02-17-2014, 05:18 PM   #21
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the software i use for my elm is proscan and elm scan master
no i have never used hyperterminal
OK. Proscan has a terminal mode. Do you have a version that let's you get to that mode?
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Old 02-17-2014, 05:48 PM   #22
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yes i think my proscan version 5.9 allows me to use terminal mode
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Old 02-17-2014, 06:00 PM   #23
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yes i think my proscan version 5.9 allows me to use terminal mode
OK. Go into terminal mode and do the following. The lines above the > lines are what you need to type into the top bar and hit send and the lines below are what you should see as responses.


ath1
>OK

atsh 7C0
>OK

21 61
>7C8 03 61 61 00

21 24
>7C8 03 61 24 FF

21 E1
>7C8 03 61 E1 00

13 81
>7C8 02 53 00
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Old 02-17-2014, 07:23 PM   #24
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this is what i got after typing in those codes
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File Type: jpg proscan pics.jpg (64.0 KB, 21 views)
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Old 02-17-2014, 07:31 PM   #25
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Just to verify, the 7c0 that you entered is 7c zero?
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Old 02-17-2014, 07:38 PM   #26
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yes i entered a zero
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Old 02-17-2014, 09:11 PM   #27
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OK. Try this:

ath1
>OK

atsh 7C4
>OK

21 22
>7CC 03 61 22 70

21 E1
>7CC 03 61 E1 00

13 81
>7CC 02 53 0
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Old 02-17-2014, 09:25 PM   #28
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this what i got
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Old 02-17-2014, 09:35 PM   #29
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OK. For the first round I had you talk to the cluster ECU, and it did not reply. For the second I had you talk to the AC ECU and it did reply.

If your meter leads are long enough, with the key off, check continuity between the green cluster wire and the violet wire of the OBD connector and between the white cluster wire and the white on the OBD connector.
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Old 02-17-2014, 11:22 PM   #30
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Hi,
I checked for continuity and for both of the wires and the voltmeter indicates a possible break can i simply jump those wires directly to the odometer?
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Old 02-17-2014, 11:41 PM   #31
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Hi,
I checked for continuity and for both of the wires and the voltmeter indicates a possible break can i simply jump those wires directly to the odometer?
You could jump them, but the two wires need to be twisted at one twist per inch minimum for the length of the jump.
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Old 02-17-2014, 11:52 PM   #32
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Thank You so much
By jumping the wires my rpm gauge and gear indicator now work
I did jump them but i didn't really understand what you meant by twisting them do you mean they must be connected to each other directly? or simply twisted around each other with no direct connection?
Is the jump suppose to make the park brake warning light and door indicator work because those are currently still not working
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Old 02-18-2014, 12:32 AM   #33
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Hi,
Do you know if i can simply trace these wires and see how they get to the cluster or do they go through the fuse box or something
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Old 02-18-2014, 06:42 AM   #34
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Hi,
Do you know if i can simply trace these wires and see how they get to the cluster or do they go through the fuse box or something
They route through a large bundle of wires that is secured to the round support bar for the dash. There is a junction connector between the cluster and the under dash fuse panel that could be unplugged. That would require removing the dash top to get to.

The other thing to check before removing the dash is the connectors on the back of the under dash fuse panel. There are two back there and one is responsible for the CAN bus comm between the cluster and the body ECU, which is how the brake and door info gets to the cluster.

And, for the twisting it is simply a case of wrapping the wires around each other.

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Old 02-18-2014, 07:44 PM   #35
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I had a look behind the fuse box non of the connectors were unplugged but there are around 6 connectors behind there and i also popped the dash off and the plugs at the junction box seem to be connected there are many plugs at the junction box i tried looking through all of them but if you know the specific one that would help greatly. Otherwise I will check all of them again.
Do know if there is any thing that could be fried between the wiring from the fuse box to the cluster or do you think its the wires that have broken
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Old 02-18-2014, 08:39 PM   #36
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Originally Posted by yaristar View Post
I had a look behind the fuse box non of the connectors were unplugged but there are around 6 connectors behind there and i also popped the dash off and the plugs at the junction box seem to be connected there are many plugs at the junction box i tried looking through all of them but if you know the specific one that would help greatly. Otherwise I will check all of them again.
Do know if there is any thing that could be fried between the wiring from the fuse box to the cluster or do you think its the wires that have broken
OK. The only one of concern is the one on the back that it by itself way up near the top of the back side.

The body ECU acts as a junction block for all of the CAN devices, so something damaged within it could be the cause.
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