P2952 moderate

Hybrid Transmission Motor A Circuit Low

The P2952 code means the vehicle's onboard diagnostic system has detected: Hybrid Transmission Motor A Circuit Low. This is a moderate severity code.

My Garage →

Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $400 - $2,500 (parts and labor)

Check Your Fluid First

ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Read Transmission Codes

LAUNCH CRP123X (Reads All Systems)

Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Common Symptoms

Check Engine Light on
Reduced hybrid system performance
Abnormal electric motor operation
Decreased fuel economy

Probable Causes (Ranked by Likelihood)

Failed motor a circuit low component Very High
Wiring damage in hybrid transmission circuit High
High voltage connection corrosion Moderate
Hybrid control module internal fault Low

Step-by-Step Diagnostic Procedure

Scan for hybrid system DTCs with compatible scanner
Inspect motor a circuit low connections and wiring
Monitor hybrid system parameters with scan tool
Check hybrid system cooling circuit operation

Frequently Asked Questions

Is this a hybrid-specific code?

Yes, this code is specific to hybrid and electric vehicle transmission systems and requires a technician trained in hybrid vehicle repair.

Is it safe to work on this myself?

Basic inspection of connectors is possible, but hybrid system repairs should be performed by certified technicians due to high voltage components.

Will this affect my fuel economy?

Yes, hybrid transmission issues typically reduce or eliminate the fuel savings that the hybrid system provides, resulting in noticeably higher fuel consumption.