NO.4 DIESEL PARTICULATE FILTER INDICATOR LIGHT FLASHES [MZR-CD 2.2]
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DIESEL PARTICULATE FILTER INDICATOR LIGHT FLASHES |
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DESCRIPTION
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• Diesel particulate filter indicator light flashes because the diesel particulate filter system can not dispose of diesel particulate
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POSSIBLE CAUSE
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• Driving condition is not in diesel particulate filter regeneration condition
• Diesel particulate filter is not regenerated by manual regeneration procedure
• Diesel particulate filter damaged or deterioration
• Erratic signal input to PCM
• PCM does not realize the diesel particulate trap amount in diesel particulate filter
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Diagnostic Procedure
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STEP |
INSPECTION |
RESULTS |
ACTION |
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1
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Connect the M-MDS to the DLC-2.
Switch the ignition to ON.
Retrieve any DTCs.
Are any DTCs displayed?
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Yes
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DTC P242F:00, P2458:00, P2459:00, P2463:00 or P253F:00 is displayed:
Go to the next Step.
Other DTC is displayed:
Go to the appropriate DTC test.
(See DTC TABLE [MZR-CD 2.2].)
Communication error message is displayed:
Inspect the following:
• Open circuit between main relay and PCM terminal 2C or 2F
• Open circuit main relay and PCM terminal 2I
• Main relay stuck open
• Open or poor ground circuit (PCM terminal 2B, 2E, 2A or 2D)
• Poor connection to vehicle body ground
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No
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No DTC is displayed:
Go to the next step.
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2
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Inspect the engine oil level.
Is the engine oil level above the X line on dipstick?
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Yes
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Replace the specified engine oil.
Perform the engine oil data reset procedure.
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No
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Go to the next step.
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3
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Inspect the exhaust system for restriction and clogging.
Is there any restriction or clogging detected?
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Yes
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Repair or replace suspect part.
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No
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Go to the next step.
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4
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Monitor the PM_ACC, PM_GEN and PM_ACC_DSD PIDs using the M-MDS.
Are monitored values 10 g/L {0.6 lb/ft3} or less?
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Yes
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Go to Step 8.
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No
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If each PIDs value are 13 g/L {0.82 lb/ft3} or less;
Go to the next step.
If each PIDs value are above 13 g/L {0.82 lb/ft3};
Go to the next step.
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5
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Monitor the PM_ACC, PM_GEN and PM_ACC_DSD PIDs using the M-MDS.
Is one of the PID monitored value 17 g/L {1.07 lb/ft3} or less?
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Yes
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Go to the next step.
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No
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Replace the oxidation catalytic converter, then go to Step 11.
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6
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Perform the following;
• Fuel injector injection amount correction
• Diesel particulate filter regeneration
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—
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Go to the next step.
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7
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Verify that the diesel particulate filter indicator light condition.
Does the diesel particulate filter indicator light flash?
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Yes
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Go to the next step.
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No
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Go to Step 11.
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8
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Perform diesel particulate filter regeneration procedure.
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—
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Go to the next step.
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9
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Perform diesel particulate filter assessment procedure.
Does diesel particulate filter assessment procedure operate properly?
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Yes
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Go to the next step.
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No
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Reinspect from Step 1.
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10
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Clear the DTC from PCM memory.
Verify the diesel particulate filter indicator light condition.
Does the diesel particulate filter indicator light flash?
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Yes
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Go to Step 1.
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No
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Troubleshooting completed, go to the next step.
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11
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Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.
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