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I have codes 0502 and u010 and no speedometer working and

Customer Question
other issues no shifting...
i have codes 0502 and u010 and no speedometer working and other issues no shifting
Submitted: 2 years ago.Category: Saturn
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Customer reply replied 2 years ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call + Provide Diagrams, Manuals, or Instructions. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer reply replied 2 years ago
have codes 0502 and u010 and no speedometer working and other issues no shifting 2005 saturn vue
Answered in 8 hours by:
11/6/2015
Saturn Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Saturn
Satisfied Customers: 23,233
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer!

The U code listed is missing a digit but with the symptoms you're having I'm assuming it was U0101. U0101 sets when the transmission control module isn't communicating, the TCM not communicating explains the speedometer not working and trans not shifting. The TCM not communicating could be a bus communication issue, a loss of power or ground to the TCM, or an internal TCM failure.

Have fuses been checked?

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Customer reply replied 2 years ago
ALL FUSES GOODIS THERE A WAY TO TEST THE TCM?
WHAT ARE THE MAIN DEVICES ON THE BUS COMMUNICATION, AND BEST WAY TO TROUBLE SHOOT THEM?
AND WHERE ARE THEY LOCATED?
Saturn Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

The TCM is the only thing not communicating, correct?

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Customer reply replied 2 years ago
how would i know if the tcm was the only thing not communication
where is the tcm located? and what is the wire color of the bus limne tcn to pcm???
is there a wiring diagram available?
Saturn Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

I'm unable to post directly from the service information due to copyright.

You would know if the TCM was the only module not communicating if a scan tool would communicate with all other modules but the TCM was not.

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Customer reply replied 2 years ago
the scan toolis communicating w all the other modules, code u0101
where is tcm located?
Saturn Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

I'm a full time tech and at work this morning I'll need to get to my Saturn wiring diagrams this evening and I'll get back to you as quickly as I can.

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Saturn Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

The TCM is behind the trim panel under the steering column.

The pink wire in pin 1 should have power with the key on.

The orange wire in pin 6 should have battery voltage.

The tan wire in pin 33 and tan/white are the bus wires.

The black wire in pin 39 is ground.

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Ask sprinkles08 Your Own Question
sprinkles08
sprinkles08
sprinkles08, ASE Certified Technician
Category: Saturn
Satisfied Customers: 23,233
23,233 Satisfied Customers
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience

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