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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 - Diagnostic Tests >> P0670-Glow Plug Controller Circuit Malfunction; P0683-Glow Plug Module Signal Circuit Malfunction >> 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.

ENGINE CONTROL MODULE

GLOW PLUG MODULE

GLOW PLUG MODULE SIGNAL/CONTROL CIRCUIT OPEN

GLOW PLUG MODULE SIGNAL/CONTROL CIRCUIT SHORTED TO GROUND

GLOW PLUG MODULE SIGNAL/CONTROL CIRCUIT SHORTED TO VOLTAGE

INTERMITTENT CONDITION

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