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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1338 (Communication - Non-DTC Based Diagnostics) >> Diagnosis And Testing >> No Response From Ecu >> When Monitored And Set Conditions

When Monitored And Set Conditions

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
DEALER INSTALLED EQUIPMENT
POWER SUPPLY (FUSED B+/IGNITION) RELATED CIRCUIT(S) SHORTED TO GROUND, OPEN, OR SHORTED
GROUND CIRCUIT(S) OPEN/HIGH RESISTANCE
CAN BUS CIRCUIT(+/-) OPEN/HIGH RESISTANCE
ELECTRONIC CONTROL UNIT (ECU)

If the COMMUNICATION DIAGNOSTIC PROCEDURE has not been performed. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .