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Home >> Chrysler >> 2009 >> PT Cruiser Limited >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Totally Integrated Power Module (TIPM) - Electrical Diagnostics) >> DTC Troubleshooting >> P0073-Ambient Air Temperature Sensor Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(G31) AAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(G31) AAT SIGNAL CIRCUIT OPEN
(G931) AAT RETURN CIRCUIT OPEN
AAT SENSOR
TIPM

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  . 

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