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Home >> Fiat >> 2018 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Electric Vehicle Control Unit (EVCU) Module - DTCS P1139-00 To U1487-00 - 500 - Electric) >> DTC Troubleshooting >> P1A02-00-Motor Electronics Coolant Pump Over Temperature >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
POWER ELECTRONICS COOLANT SYSTEM LOW COOLANT LEVEL
POWER ELECTRONICS COOLANT SYSTEM COOLANT CONTAMINATION
POWER ELECTRONICS COOLANT SYSTEM RESTRICTED AIR FLOW
POWER ELECTRONICS COOLANT PUMP
WARNING:

On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury.

Refer to HIGH-VOLTAGE POWER DOWN PROCEDURE to perform the High Voltage Power Down procedure.

Always perform the Pre-Diagnostic Troubleshooting Procedure before proceeding. Refer to  EVCU PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .