DTC P0480: Notes

DTC P0480 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0480	Fan control circuit
DETECTION CONDITION	This test inspect the fan control circuit. The DTC sets if the PCM detects the voltage on the fan control variable circuit is not within the expected range.
POSSIBLE CAUSE	Connector or terminal malfunction Fan control module malfunction Dual fan control module Open Circuit between fan control module No.1 terminal 1B and PCM terminal 1AM Short to power supply between fan control module No.1 terminal 1B and PCM terminal 1AM Short to ground circuit between fan control module No.1 terminal 1 B and PCM terminal 1AM Open circuit between fan control module No.2 terminal B and PCM terminal 1AM Short to power supply between fan control module No.2 terminal B and PCM terminal 1AM Short to ground circuit between fan control module No.2 terminal B and PCM terminal 1AM Open circuit between fan control module No.1 terminal 1 A and cooling fan relay No.1 terminal E Open circuit between fan control module No.1 terminal 1C and body ground Open circuit between fan control module No.2 terminal A and cooling fan relay No.2 terminal E Open circuit between fan control module No.2 terminal C and body ground Single fan control module Open circuit between fan control module terminal 1B and PCM terminal 1AM Short to power supply between fan control module terminal 1B and PCM terminal 1AM Short to ground circuit between fan control module terminal 1 B and PCM terminal 1 AM Open circuit between fan control module terminal 1C and cooling fan relay terminal E Open circuit between fan control module terminal 1 A and body ground
Courtesy of MAZDA MOTORS CORP.