ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Find Your OBD2 Code Fast

Type the code from your scanner to get causes, symptoms, and fixes.

Code P1C93

Quick reference

P1C93 at a glance

Plain-language meaning
This code means that there's a problem with the car's charging system. It's like when your phone charger is plugged in but not working because the cable is loose.
Urgency
High – This issue can prevent the vehicle from charging properly, leading to potential breakdown.
Difficulty
Moderate
System
Electrical Circuit Issue
Tools mentioned
Multimeter, OBD-II scanner, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that there's a problem with the car's charging system. It's like when your phone charger is plugged in but not working because the cable is loose.

Explanation

The P1C93 code is triggered when the vehicle's computer detects a low voltage or no signal from the charge enable circuit of the Loading Interface Module.

Technical description

The Loading Interface Module is responsible for managing the charging process of the vehicle's battery. The Charge Enable Signal Circuit is part of this system, and it sends a signal to allow charging to occur. A 'Circuit Low' condition indicates that the signal is weaker than expected or absent, which can prevent the battery from charging properly.

Symptoms

• Battery not charging

• Warning light on the dashboard

• Reduced vehicle performance

Common Causes

• Faulty Loading Interface Module

• Damaged or corroded wiring/connectors

• Faulty battery or charging system components

Glossary

Loading Interface Module: A component that manages the charging process of the vehicle's battery.

Circuit Low: A condition where the expected electrical signal is weaker than normal or absent.

Diagnosis steps

• Check for any visible damage or corrosion in the wiring and connectors.

• Test the Loading Interface Module for proper operation.

• Inspect the battery and charging system components for faults.

Repair procedures

• Repair or replace damaged wiring/connectors.

• Replace the Loading Interface Module if faulty.

• Service or replace battery/charging system components as needed.

Tools required

• Multimeter

• OBD-II scanner

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Nissan Leaf

• Toyota Prius

Preventive measures

• Regularly inspect charging cables and connectors for wear.

• Keep the battery and charging system components clean.

• Schedule regular maintenance checks.

Error code type

Electrical Circuit Issue

User experience recommendations

• Avoid driving the vehicle until the issue is resolved to prevent battery drain.

• Consult with a certified technician for accurate diagnosis and repair.

Warranty information

Check with your vehicle manufacturer for warranty coverage on electrical components.

Historical data

This code is relatively uncommon and usually associated with hybrid or electric vehicles.

Urgency level

High – This issue can prevent the vehicle from charging properly, leading to potential breakdown.

Testing conditions

• Vehicle in 'ON' position

• Battery charging system active

Component location

The Loading Interface Module is typically located near the vehicle's battery or within the engine compartment.

FAQs

Q: Can I drive my car with the P1C93 code?
A: It's not recommended to drive with this code active, as it may lead to battery issues and potential vehicle shutdown.

Q: How can I clear the P1C93 code?
A: The code can be cleared using an OBD-II scanner after the underlying issue is resolved.

Optional diagnostic gear

Tools that may help diagnose P1C93

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.

Chassis and ABS faults usually need a scanner that can read brake-system data directly.

View on Amazon
EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" Torque Wrench

Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.

Useful when wheel, hub, or suspension hardware needs correct reassembly torque.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
🌙