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Test X - Isolation Valve Continuity

  1. Perform ABS/TCS functional check before proceeding. See Figure . Turn ignition off. Disconnect Pressure Modulator Valve (PMV) Black C1 connector. Measure resistance between PMV C1 connector (terminal side) terminal No. 14 and PMV casing. See Figure .
  2. Resistance should be infinite. If resistance is not as specified, replace PMV assembly. Measure resistance between PMV C1 connector (terminal side) terminal No. 14 (Red wire) and No. 1 (left isolation valve, Orange wire).
  3. Resistance should be 5-8 ohms. If resistance is not as specified, replace PMV assembly. Measure resistance between PMV C1 connector (terminal side) terminal No. 14 (Red wire) and No. 2 (right isolation valve, Purple wire).
  4. Resistance should be 5-8 ohms. If resistance is not as specified, replace PMV assembly. If all measurements are correct, reconnect PMV C1 Black connector and go to TEST Y. After all repairs are complete, clear codes, and perform ABS/TCS functional check. See Figure .
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