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P0380 Air Heater Relay 1 Malfunction

AutoHex Online Help: Hyundai TERRACAN(HP) 2003
TROUBLESHOOTING FOR DTC

DTC

P0380

Glow Relay 1 Circuit Malfunction

CC-CODE

0a

Signal low (Open circuit or short circuit to ground)

03

Signal high (Short circuit to battery line)

0a

Open circuit or short circuit to ground

03

Short circuit to battery line

DTC

P0382

Glow Relay 2 Circuit Malfunction

CC-CODE

0a

Signal low (Open circuit or short circuit to ground)

03

Signal high (Short circuit to battery line)

0a

Open circuit or short circuit to ground

03

Short circuit to battery line

Glow plug plays an efficient role at cold start. It also shortens the warm-up period, a fact that is highly relevant for exhaust emissions. The time of preheating is determined by a number of parameters that include the engine speed and the coolant temperature. The ECM controls the glow plug via glow plug relay.

DTC DETECTING CONDITION

CC-CODE

Detecting Condition

Suspect Area

0a

Open or short to ground in glow relay circuit

Open or short in Glow Relay cirucit

Glow Relay

ECM

03

Short to battery line in glow relay circuit

[SCHEMATIC DIAGRAM]
INSPECTION PROCEDURE