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(P0120) ELECTRONIC THROTTLE CONTROL MOTOR PERFORMANCE (CONTINUED) 10. CHECK THE 5-VOLT SUPPLY CIRCUIT VOLTAGE With the ignition on. Measure the voltage of the 5-Volt Supply circuit at the Throttle Body Is the voltage between 4.7 and 5.2 volts? Yes >> Go To 11 No >> If the voltage is above 5.2 volts, Go To 16 If the voltage is below 4.7 volts, Go To 18 11. CHECK THE SENSOR GROUND CIRCUIT Turn the ignition off. Measure the resistance between ground and the Sensor Ground cir- Is the resistance below 5.0 ohms? Yes >> Go To 12 No >> Go To 23 ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 81 |