DTC P2146 [WL-C, WE-C (Australian, European (L.H.D. U.K.) specs.)]
id0102c4957600
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DTC P2146 |
Fuel injector No.1 and No.4 power supply circuit malfunction |
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DETECTION CONDITION
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• The PCM monitors the fuel injector No.1 and No.4 power supply voltage when the engine is running. If the following conditions are detected 5 times, the PCM determines that the fuel injector No.1 and No.4 power supply circuit has a malfunction.
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POSSIBLE CAUSE
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• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related service information availability.
• Is any related service information available?
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Yes
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Perform repair or diagnosis according to the available service information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
• Connect the M-MDS to the DLC-2.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine.
• Is the same DTC present?
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Yes
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Go to the next step.
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No
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Intermittent concern exists.
Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”.
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4
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VERIFY TROUBLESHOOTING OF DTC P2146 COMPLETED
• Turn the engine switch off.
• Make sure to reconnect all disconnected connectors.
• Turn the engine switch to the ON position (Engine off).
• Clear the DTC from the memory using the M-MDS.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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5
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “After Repair Procedure“.
• Are any DTCs present?
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Yes
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Go to the applicable DTC troubleshooting.
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No
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Troubleshooting completed.
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