# 2007 Hyundai Santa Fe - P0734/0738 codes

**URL:** <https://community.cartalk.com/t/2007-hyundai-santa-fe-p0734-0738-codes/143752>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, santafe\
**Created:** [July 6, 2019, 2:49pm UTC](https://community.cartalk.com/t/2007-hyundai-santa-fe-p0734-0738-codes/143752 "2019-07-06T14:49:09Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![JOHNfoust](https://avatars.discourse-cdn.com/v4/letter/j/65b543/32.png) [@JOHNfoust](https://community.cartalk.com/u/JOHNfoust)\
**Post date:** [July 6, 2019, 2:49pm UTC](https://community.cartalk.com/t/2007-hyundai-santa-fe-p0734-0738-codes/143752/1 "2019-07-06T14:49:10Z")

</div>

have 2007 hyundai sante fe 3.3l v6 and my check engine light is on and the codes are p0734 and p0738 says it is the gear shift not shifting into gears

---

<div class="post-metadata">

**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [July 6, 2019, 3:51pm UTC](https://community.cartalk.com/t/2007-hyundai-santa-fe-p0734-0738-codes/143752/2 "2019-07-06T15:51:20Z")

</div>

Could be one of these for P0734

Low or dirty transmission fluid  
Mechanical failure inside transmission  
Internal blockage inside transmission main control  
Faulty Shift solenoid  
Faulty transmission control module

Read more at: [https://www.obd-codes.com/p0734](https://www.obd-codes.com/p0734)  
Copyright [OBD-Codes.com](http://OBD-Codes.com)

For the P0738 causes may be;

Defective Engine Speed Sensor (ESS)  
Defective ECM (Engine Control Module)  
Defective TCM (Transmission Control Module)  
Wiring issue  
Dirty pickup on the ESS Connector problem

Read more at: [https://www.obd-codes.com/p0738](https://www.obd-codes.com/p0738)  
Copyright [OBD-Codes.com](http://OBD-Codes.com)

Faulty TCM is common to both faults but I’d for sure check the fluid level first. I’d use a scanner to read the engine speed sensors - if it starts and runs, likely not the problem. I’d also try and read the TCM itself. If the scanner is designed to read the TCM and it won’t, then likely the TCM is bad.

If you don’t have the tools or don’t understand what I posted, see your local independent auto shop.