OBD Guide
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P1A76

Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage

P1A76 is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage. Common causes: generator 2 coolant temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–50.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–50 (est.)

Symptoms

  • The Check Engine light comes on
  • Reduced efficiency of the start-stop system
  • Battery charging problems
  • Reduced hybrid system performance (if applicable)

Causes

  • Generator 2 coolant temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor or control module connectors
  • Starter/Generator Control Module Malfunction
  • Circuit Grounding Problems

How to Fix

  1. Check the resistance and output voltage of the temperature sensor
  2. Inspect wiring and connectors for damage
  3. Check the circuit connection for short circuit or open circuit.
  4. If necessary, replace the coolant temperature sensor
  5. Check the operation of the starter/generator control module

Related codes

P1A75P1A77P1A78

FAQ

What does the P1A76 code mean?

P1A76 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage

What causes a P1A76 error code?

The most common causes of P1A76 include: Generator 2 coolant temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor or control module connectors; Starter/Generator Control Module Malfunction.

How do I fix a P1A76 diagnostic trouble code?

To fix P1A76: Check the resistance and output voltage of the temperature sensor. Inspect wiring and connectors for damage. Check the circuit connection for short circuit or open circuit.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1A76?

Yes, but get it checked soon

How much does it cost to fix P1A76?

The estimated repair cost for P1A76 is $17–50. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat