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Is the resistance greater than 5 ohms? -> Yes REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
-> No GO to Pinpoint Test G258127t167.
G258127t167 : CHECK IAT SENSOR 2 SENSING CIRCUIT FOR SHORT TO HIGH 1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3. Measure the voltage between PI43, pin 01 (YU) and GROUND. Is the voltage greater than 3 volts? -> Yes REPAIR the short circuit to high voltage. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
-> No GO to Pinpoint Test G258127t168.
G258127t168 : CHECK IAT SENSOR 2 SENSING CIRCUIT FOR SHORT TO 1. Turn the ignition switch to the OFF position. 2. Measure the resistance between PI43, pin 01 (YU) and GROUND. Is the resistance less than 10,000 ohms? -> Yes REPAIR the short circuit to GROUND. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
-> No INSTALL a new IATS 2. CLEAR the DTC. TEST the system for normal operation. PINPOINT TEST G258127p38 : P1410; |