RAV4 4WD L4-2.0L (3S-FE) (1996)
Vacuum Switching Valve (VSV) for EGR: Testing and Inspection
1. 4WD:
REMOVE BATTERY
2. REMOVE VSV
3. INSPECT VSV
A. Inspect VSV for open circuit
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Using an ohmmeter, check that there is continuity between the terminals.
Resistance: At 2O°C (68°F): 33 - 39 Ohm
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If there is no continuity, replace the VSV.
B. Inspect VSV for ground
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Using an ohmmeter, check that there is no continuity between each terminal and the body.
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If there is continuity, replace the VSV.
C. Inspect VSV operation
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Check that air flows from ports E to G.
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Apply battery positive voltage across the terminals.
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Check that air flows from port E to the filter. If operation is not as specified, replace the VSV.