DTC P0480 [MZI-3.7]
DTC P0480 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
6
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-
3.7]
.)
z
Are any DTCs present?
No
Troubleshooting completed.
DTC P0480
Fan control circuit
DETECTION
CONDITION
z
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
z
Connector or terminal malfunction
z
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 1B 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 1A 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 1
AM
{
Short to power supply between fan control module terminal 1B and PCM
terminal 1AM
{
Short to ground circuit between fan control module terminal 1B and PCM
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 234
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