B1448 – OBD-II DTC

OBD-II DTC B1448 – Wiper Park Sense Circuit Short To Battery

DTC B1448 meaning

DTC B1448 refers to a diagnostic trouble code indicating a problem with the Wiper Park Sense Circuit. Specifically, it signifies a short circuit to battery voltage within the wiper park sense circuit. This circuit is responsible for detecting the position of the windshield wipers when they are in the parked position.

DTC B1448 symptoms

Common symptoms associated with DTC B1448 may include:

• Windshield wipers not functioning properly
• Wipers failing to park in the correct position
• Intermittent wiper operation issues
• Dashboard warning lights illuminated

DTC B1448 causes

Several factors can lead to the triggering of DTC B1448, including:

• Short circuit in the wiper park sense circuit wiring
• Faulty wiper motor or wiper control module
• Corroded or damaged connectors in the circuit
• Issues with the vehicle’s body control module (BCM)

DTC B1448 seriousness

DTC B1448 is considered a moderate to serious issue. While it may not immediately affect the vehicle’s drivability, it can lead to reduced visibility during inclement weather if the wipers do not function correctly. It is advisable to address this code promptly to ensure safe driving conditions.

How to diagnose DTC B1448

To diagnose DTC B1448, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Inspect the wiper park sense circuit wiring for any visible damage or corrosion.
3. Check the connectors for proper connection and signs of wear.
4. Test the wiper motor and control module for functionality.
5. Use a multimeter to check for voltage and continuity in the circuit.

How to fix DTC B1448 step-by-step instructions

To fix DTC B1448, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety.
2. Inspect and repair any damaged wiring or connectors in the wiper park sense circuit.
3. If necessary, replace the wiper motor or control module.
4. Reconnect the battery and clear the DTC using an OBD-II scanner.
5. Test the wipers to ensure they operate correctly and park in the proper position.

How to erase DTC B1448

To erase DTC B1448, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the DTC menu on the scanner.
4. Select the option to clear or erase trouble codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to verify that the code does not return.

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