# \-23 error code problems

**URL:** <https://community.electricforum.com/t/23-error-code-problems/28434>\
**Category:** GEM Forum\
**Created:** [October 3, 2024, 10:29pm UTC](https://community.electricforum.com/t/23-error-code-problems/28434 "2024-10-03T22:29:04Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jblove27](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@jblove27](https://community.electricforum.com/u/jblove27)\
**Post date:** [October 3, 2024, 10:29pm UTC](https://community.electricforum.com/t/23-error-code-problems/28434/1 "2024-10-03T22:29:04Z")

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Gem was running fine and when I went to use it -51 popped up. After checking the connections it went away and now I’m stuck with -23. Any thoughts as to what could be causing this. 2002 with sdi 22 lithium battery and t1 controller.

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<div class="post-metadata">

**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\
**Post date:** [October 3, 2024, 11:54pm UTC](https://community.electricforum.com/t/23-error-code-problems/28434/2 "2024-10-03T23:54:41Z")

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I saw and responded to this over on fb. Do you want it here too just for continuity?

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**Author:** ![Cformony](https://avatars.discourse-cdn.com/v4/letter/c/b19c9b/32.png) [@Cformony](https://community.electricforum.com/u/Cformony)\
**Post date:** [October 4, 2024, 2:10am UTC](https://community.electricforum.com/t/23-error-code-problems/28434/3 "2024-10-04T02:10:07Z")

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I’d like to know… might keep me from asking a dumb question later on… Might being the key word… Lol

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**Author:** ![IRBGEM](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/irbgem/32/4550_2.png) [@IRBGEM](https://community.electricforum.com/u/IRBGEM)\
**Post date:** [July 4, 2025, 10:00pm UTC](https://community.electricforum.com/t/23-error-code-problems/28434/4 "2025-07-04T22:00:21Z")

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What was the solution to this?

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<div class="post-metadata">

**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\
**Post date:** [July 5, 2025, 2:53pm UTC](https://community.electricforum.com/t/23-error-code-problems/28434/5 "2025-07-05T14:53:02Z")

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**-51 - Capacitor volts are low before the line contactor closes.**

Usually -51 happens if the Key is ON then MainSw on (incorrect Power Up sequence). Or perhaps KeyON was done quickly after MainSwON?

A key cycle should clear it.

If not, then there may be a loose connection on P1 on the 23p connector.

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**-23 - Motor field current is too high when the key switch is turned on.**

Try disconnecting one of the field wires and see if the code changes.

If Yes, check field coil for short to itself or shorted to ground.

If -23 code still present, you may need to change out your controller.