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Transcript
(K153) TIP SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Fig 4: Checking (K153) TIP Signal Circuit Open Or High Resistance GC0071236 Courtesy of CHRYSLER LLC CAUTION: When checking circuits at the Powertrain Control Module (PCM), be careful not to damage or distort the connector terminals. Improper measurement technique could result in poor pin to terminal contact. Measure the resistance of the (K153) TIP Signal circuit between the Throttle Inlet Pressure Sensor harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to . No Repair the (K153) TIP Signal for an open circuit or high resistance. Perform . (K152) TIP RETURN CIRCUIT OPEN OR HIGH RESISTANCE Fig 5: Checking (K152) TIP Return Circuit Open Or High Resistance GC0071237 Courtesy of CHRYSLER LLC CAUTION: When checking circuits at the Powertrain Control Module (PCM), be careful not to damage or distort the connector terminals. Improper measurement technique could result in poor pin to terminal contact. Measure the resistance of the (K152) TIP Return circuit between the Throttle Inlet Pressure Sensor harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to . No Repair the (K152) TIP Return circuit for an open circuit or high resistance. Perform . THROTTLE INLET PRESSURE SENSOR VOLTAGE Fig 6: Checking Throttle Inlet Pressure Sensor Signal Voltage GC0071238 Courtesy of CHRYSLER LLC Turn the ignition off. Connect the Powertrain Control Module (PCM) connector. Connect a jumper wire between the (K152) TIP Return circuit and the (K153) TIP Signal circuit in the Throttle Inlet Pressure Sensor harness connector. Turn the ignition on. With the scan tool, read the Throttle Inlet Pressure Sensor signal voltage. NOTE: The voltage should be approximately 0.0 volts (plus or minus.1 volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Go to . No Go to . THROTTLE INLET PRESSURE SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Inlet Pressure Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related connectors. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform . POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Inlet Pressure Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related connectors. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform .