OBD Guide

P2D73

Battery Charging System Negative Contactor D Control Circuit/Open

P2D73 is an OBD-II diagnostic trouble code meaning: Battery Charging System Negative Contactor D Control Circuit/Open. Common causes: open contactor control circuit, contactor relay fault. Estimated repair cost: $17โ€“89.

Severity
๐Ÿ”ด High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17โ€“89 (est.)

Symptoms

  • Check engine light is on
  • Reduced voltage in the on-board network
  • Problems starting the engine
  • Battery low
  • Irregular operation of electrical equipment

Causes

  • Open contactor control circuit
  • Contactor relay fault
  • Wiring harness damage
  • Short circuit in the circuit
  • Malfunction of the charging system control unit

How to Fix

  1. Check the integrity of the contactor control circuit
  2. Check the functionality of the contactor relay
  3. Inspect the wiring harness for damage
  4. Check connections and contacts in the circuit
  5. Test the charging system control unit

Related codes

Error P2D73 by Vehicle Brand

FAQ

What does the P2D73 code mean?

P2D73 is an OBD-II diagnostic trouble code that indicates: Battery Charging System Negative Contactor D Control Circuit/Open

What causes a P2D73 error code?

The most common causes of P2D73 include: Open contactor control circuit; Contactor relay fault; Wiring harness damage; Short circuit in the circuit.

How do I fix a P2D73 diagnostic trouble code?

To fix P2D73: Check the integrity of the contactor control circuit. Check the functionality of the contactor relay. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2D73?

Limited driving only, diagnose soon

How much does it cost to fix P2D73?

The estimated repair cost for P2D73 is $17โ€“89. Actual cost depends on your vehicle, location, and labor rates.

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