EGR VALVE INSPECTION [L3 Turbo]
EGR VALVE INSPECTION [L3 Turbo]
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Resistance Inspection
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Note
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• Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Inspect resistance of the EGR valve coils.
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• If not as specified, replace the EGR valve.
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• If as specified, carry out the "Circuit Open/Short Inspection".
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Terminals
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Resistance (ohm)
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C-E
C-A
D-B
D-F
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8-9
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Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [L3 Turbo].)
2. Inspect the following wiring harnesses for open or short circuit (continuity check).
Open circuit
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• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
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- EGR valve terminal E and PCM terminal 4D
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- EGR valve terminal A and PCM terminal 4G
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- EGR valve terminal B and PCM terminal 4J
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- EGR valve terminal F and PCM terminal 4M
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- EGR valve terminal C or D and main relay terminal C
Short circuit
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• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
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- EGR valve terminal E and Ground
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- EGR valve terminal A and Ground
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- EGR valve terminal B and Ground
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- EGR valve terminal F and Ground
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- EGR valve terminal C or D and power supply
3. Remove the EGR valve, and inspect for any damage or clogging.
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• If there is no damage or clogging, replace the EGR valve.
