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(P0521) ENGINE OIL SENSOR OVER TEMPERATURE (CONTINUED) 7. MEASURE THE 5-VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the MAP Sensor harness connector. Note: Check connectors — Clean/repair as necessary. Measure the voltage of the 5-Volt Supply circuit at the Oil Sensor har- Is the voltage 4.7 – 5.2 volts? Yes >> Replace and program the Powertrain Control Module. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL CONTROL MODULE - REMOVAL). Perform POWERTRAIN VERIFICATION TEST - VER 2. No >> Go To 8 8. MEASURE THE 5-VOLT SUPPLY CIRCUIT VOLTAGE WITH MAP SENSOR DISCONNECTED Turn the ignition off. Disconnect the MAP Sensor harness connector. Note: Check connectors — Clean/repair as necessary. Measure the voltage of the 5-Volt Supply circuit at the Oil Sensor har- Is the voltage 4.7 – 5.2 volts? Yes >> Replace the Manifold Absolute Pressure Sensor. (Refer to 14 - FUEL SYSTEM/FUEL INJECTION/MAP SENSOR - Perform POWERTRAIN VERIFICATION TEST - VER 2. No >> If the voltage is above 5.2 volts, Go To 9 If the voltage is below 4.7 volts, Go To 10 ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 521 |