DTC DETECTION LOGIC
DTC No. | Trouble diagnosis name | Possible cause |
P0380 | GLOW CONTROL UNIT CIRCUIT • CO: Open circuit • CC.0: Short circuit to ground • CC.1: Short circuit to +12V | • Harness or connectors (The glow relay circuit is open or shorted.) • Glow relay |
P0381 | GLOW CONTROL UNIT CIRCUIT • CC.0: Short circuit to ground • CO.1: Open circuit or short circuit to +12V | • Harness or connectors (The glow relay circuit is open or shorted.) • Glow relay • Glow plug |
NOTE:
• Conditions for applying the diagnostic procedure to the stored DTCs: The DTC is declared present after attempts have been made to start the engine.
• Special notes: If the DTC is present, it will be difficult to start the vehicle, or even impossible when cold, or preheating will be continuous and the heater plugs will deteriorate.