# 1999 Chevy Blazer with service engine soon light

**URL:** <https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, blazer\
**Created:** [June 9, 2010, 6:43am UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078 "2010-06-09T06:43:41Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![david542](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@david542](https://community.cartalk.com/u/david542)\
**Post date:** [June 9, 2010, 6:43am UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078/1 "2010-06-09T06:43:41Z")

</div>

I have service engine soon light that goes on and off. When I scanned it for codes I get a P07053. Could some please tell me what this code is, why light keeps going on and off and what needs to be fixed. Thanks

---

<div class="post-metadata">

**Author:** ![Goldwing](https://avatars.discourse-cdn.com/v4/letter/g/e68b1a/32.png) [@Goldwing](https://community.cartalk.com/u/Goldwing)\
**Post date:** [June 9, 2010, 4:07pm UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078/2 "2010-06-09T16:07:44Z")

</div>

Are you sure it’s P07053? There should only be 4 digits after the P.

---

<div class="post-metadata">

**Author:** ![david542](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@david542](https://community.cartalk.com/u/david542)\
**Post date:** [June 9, 2010, 8:04pm UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078/3 "2010-06-09T20:04:00Z")

</div>

sorry about that I must have been more tired than I thought. I rechecked the code and it is P0753.

---

<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [June 9, 2010, 8:19pm UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078/4 "2010-06-09T20:19:39Z")

</div>

P0753 = Shift Solenoid A Electrical. This means solenoid A in the transmission has an electrical problem.

Tester

---

<div class="post-metadata">

**Author:** ![researcher](https://avatars.discourse-cdn.com/v4/letter/r/edb3f5/32.png) [@researcher](https://community.cartalk.com/u/researcher)\
**Post date:** [June 9, 2010, 8:21pm UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078/5 "2010-06-09T20:21:17Z")

</div>

DTC code P0753 is a tranmission code that indicates a fault in 1-2 Shift Solenoid Circuit Electrical. Two conditions set the code. 1) the VCM (Vehicle Control Module) commands 1-2 shift solenoid ‘ON’ and voltage remains high (B+). 2) the VCM commands 1-2 shift solenoid ‘OFF’ and voltage remains low (zero).

If you can get to Alldata, there is a trouble shooting chart that will lead you through the diagnostic procedure.

Hope this helps.

---

<div class="post-metadata">

**Author:** ![david542](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@david542](https://community.cartalk.com/u/david542)\
**Post date:** [June 12, 2010, 1:17pm UTC](https://community.cartalk.com/t/1999-chevy-blazer-with-service-engine-soon-light/50078/6 "2010-06-12T13:17:46Z")

</div>

Alldatadiy says I need scan tool that has transmisson output contol function. Can you tell me which one I need? Thanks