B1357 – OBD-II DTC

OBD-II DTC B1357 – Ignition Run Circuit Short To Battery

DTC B1357 meaning

DTC B1357 refers to a diagnostic trouble code indicating an issue with the ignition run circuit. Specifically, it signifies a short circuit to battery voltage within the ignition run circuit. This can prevent the proper functioning of various electrical components in the vehicle, particularly those related to the ignition system.

DTC B1357 symptoms

Common symptoms associated with DTC B1357 may include:

• Engine not starting or stalling
• Dashboard warning lights illuminated
• Malfunctioning electrical components
• Intermittent power loss to accessories

DTC B1357 causes

Several factors can lead to the occurrence of DTC B1357, including:

• Wiring issues such as frayed or damaged wires
• Faulty ignition switch
• Corroded connectors in the ignition circuit
• Short circuits due to improper modifications or repairs

DTC B1357 seriousness

DTC B1357 is considered a serious issue as it can affect the vehicle’s ability to start and operate correctly. If left unaddressed, it may lead to further electrical problems or complete failure of the ignition system, potentially leaving the driver stranded.

How to diagnose DTC B1357

To diagnose DTC B1357, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Inspect the ignition run circuit wiring for visible damage or wear.
3. Check the ignition switch for proper operation.
4. Examine connectors for corrosion or loose connections.
5. Perform continuity tests on the circuit to identify shorts.

How to fix DTC B1357 step-by-step instructions

To fix DTC B1357, follow these steps:

1. Disconnect the battery to ensure safety while working on the electrical system.
2. Inspect and repair any damaged wiring in the ignition run circuit.
3. Replace the ignition switch if it is found to be faulty.
4. Clean or replace corroded connectors as necessary.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the vehicle to ensure the issue is resolved and the code does not return.

How to erase DTC B1357

To erase DTC B1357, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the scanner’s menu and select the option to clear or erase trouble codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the vehicle to verify that the code has been cleared.

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