P1345 – OBD-II DTC

OBD-II DTC P1345 – Injector Circuit / IDM Codes Detected

DTC P1345 meaning

DTC P1345 refers to a problem detected in the injector circuit or the Injector Driver Module (IDM) of a vehicle’s engine management system. This code indicates that the Engine Control Module (ECM) has identified an issue with the operation of the fuel injectors, which can lead to improper fuel delivery and affect engine performance.

DTC P1345 symptoms

Common symptoms associated with DTC P1345 may include:

• Engine misfires
• Rough idling
• Decreased engine performance
• Increased fuel consumption
• Check Engine Light (CEL) illuminated

DTC P1345 causes

Several factors can lead to the triggering of DTC P1345, including:

• Faulty fuel injectors
• Wiring issues in the injector circuit
• Defective Injector Driver Module (IDM)
• Poor electrical connections
• Faulty Engine Control Module (ECM)

DTC P1345 seriousness

DTC P1345 can be considered serious as it may lead to significant engine performance issues. If left unaddressed, it can result in:

• Increased emissions
• Potential engine damage
• Failure to pass emissions tests
• Reduced fuel efficiency

How to diagnose DTC P1345

To diagnose DTC P1345, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Check for any additional trouble codes that may provide more context.
3. Inspect the wiring and connectors related to the fuel injectors and IDM for damage or corrosion.
4. Test the fuel injectors for proper operation using a multimeter.
5. Examine the Injector Driver Module for faults.
6. Check the Engine Control Module for any software updates or faults.

How to fix DTC P1345 step-by-step instructions

To fix DTC P1345, follow these step-by-step instructions:

1. Clear the trouble code using an OBD-II scanner.
2. Inspect and repair any damaged wiring or connectors in the injector circuit.
3. Replace any faulty fuel injectors identified during testing.
4. Replace the Injector Driver Module if it is found to be defective.
5. Recheck the system for any additional codes after repairs.
6. Test drive the vehicle to ensure the issue is resolved and the Check Engine Light does not reappear.

How to erase DTC P1345

To erase DTC P1345, 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 trouble codes section on the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.
6. Disconnect the scanner and start the engine to verify that the Check Engine Light is off.

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