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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 490 (Powertrain Diagnostic Procedures - Diesel) >> Diagnostic Information And Procedures >> DRIVEABILITY - Diesel - Symptoms >> Symptom: *CHECKING THE ECM POWER AND GROUND CIRCUITS >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

ASD RELAY CONTROL CIRCUIT OPEN

ASD RELAY OUTPUT CIRCUIT(S) OPEN

CHECKING THE ASD RELAY SYSTEM

ECM GROUND CIRCUIT(S) OPEN

FUSED ASD RELAY BATTERY SUPPLY CIRCUIT OPEN

FUSED IGNITION SWITCH (START) OUTPUT CIRCUIT OPEN

FUSED IGNITION SWITCH (START/RUN) OUTPUT CIRCUIT OPEN

SUBSTITUTE ASD RELAY

ASD RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE