|
|
Content .. 1137 1138 1139 1140 ..
*NO RESPONSE WITH A NO START CONDITION (CONTINUED) 6. (F855) 5-VOLT SENSOR OPEN/SHORTED Turn the ignition off. Disconnect the TP Sensor/Throttle Body harness connector. Ignition on, engine not running. Measure the voltage on the (F855) 5-volt Supply circuit. Disconnect all the sensors that use the (F855) 5-volt Supply circuit. Did the voltage return to 4.5 to 5.2 volts when disconnecting Yes >> Replace the sensor that is pulling down the (F855) 5-volt supply. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 7 7. (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect PCM harness connectors. Disconnect all the sensors that share the (F855) 5-volt Supply circuit. Measure the resistance between ground and the (F855) 5-volt Supply circuit at one of the sensor harness connec- Is the resistance below 100 ohms? Yes >> Repair the short to ground in the (F855) 5-volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Go To 8 9 - 1152 ENGINE ELECTRICAL DIAGNOSTICS WK |