P0A34 code meaning
Drive Motor B Temperature Sensor Circuit Intermittent
Powertrain system Generic code P0Axx codes Check engine light
What P0A34 means
P0A34 covers a motor B temperature signal that drops out or jumps for short moments instead of failing permanently. A winding temperature cannot change by tens of degrees within milliseconds, so such steps point to a loose contact, a chafed wire or a cracked solder joint. No manufacturer documents P0A34 publicly; GM and Mitsubishi only list the permanent faults P0A32 and P0A33 for this sensor, with debounce times of a few hundred milliseconds to seconds that a brief dropout may not meet. CARB 1968.2 requires circuit monitoring of emission-relevant hybrid components. The fault often comes and goes with vibration or heat, and the hybrid system may limit electric drive while it is active.
P0A34 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0A34
- Hybrid warning that appears and clears on its own
- Motor B temperature jumps in live data
- Occasional loss of electric drive power
Common causes of P0A34
- Most likelyLoose or fretting terminal in the sensor connector
- PossibleWire insulation chafed through at a moving harness section
- Less likelyCracked joint at the thermistor leads inside the motor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor b temp sensorWiring harnessHybrid control module
What each part of P0A34 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A | Area: hybrid propulsion. |
| 34 | The exact fault in that area. |
What to do next
- Note P0A34 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0A34
What does P0A34 mean?
P0A34 means "Drive Motor B Temperature Sensor Circuit Intermittent". P0A34 covers a motor B temperature signal that drops out or jumps for short moments instead of failing permanently. It is a generic code, so it means the same on every make.
Is it safe to drive with P0A34?
Drive gently and only to a workshop. With P0A34 the car can go into limp mode (reduced power) to protect itself.
Will P0A34 fail an emissions test?
Yes, it can. P0A34 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0A34 to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P0A34 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.