SW1 L4-1.9L SOHC VIN 8 (1996)
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IGN voltage is above 11.0 volts.
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Voltage is less than 0.20 volts.
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Condition present for greater than five seconds.
When this DTC fails, EGR will be disabled for the entire ignition cycle. The malfunction history record will aid in diagnosis.
IMPORTANT:
The EGR valve may operate at any engine coolant temperature regardless of loop mode.
TEST DESCRIPTION
1.
Normal closed valve position feedback voltage should be greater than 0.20 volts at all times.
2.
A voltage of less than 0.2 volts indicates a problem with the position feedback circuit.
DIAGNOSTIC AIDS
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Check for backed out or damaged electrical terminals.
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Check the tightness of the female terminal grip with a spare male terminal.
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A short to ground in the 5-volt reference will set both a P1635 and a P0405. If both are set, diagnose P1635 first.
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An open in the 5-volt reference will set only the P0405.
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An open in the PCM diode feedback circuit will result in unstable valve operation resulting in vehicle surge.
EGR - Closed Position Error
