DTC P0481:00 [PCM (SKYACTIV-D 2.2)]

id0102j5704700

DTC P0481:00

Fan control module No.2 control circuit problem

DETECTION CONDITION

•  The fan control module No.2 control voltage is abnormally high or abnormally low for a continuous 6 s relative to the PCM control signal.

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  Not applicable

POSSIBLE CAUSE

•  Fan control module No.2 connector or terminal malfunction

•  Cooling fan relay No.2 malfunction

•  Short to ground or open circuit in cooling fan relay No.2 power supply circuit

―  Short to ground in wiring harness between positive battery terminal and cooling fan relay No.2 terminal A

―  MAIN 200 A fuse malfunction

―  ADD FAN DE 40 A fuse malfunction

―  Open circuit in wiring harness between positive battery terminal and cooling fan relay No.1 terminal A

•  Short to ground or open circuit in cooling fan relay No.2 power supply circuit

―  Short to ground in wiring harness between main relay terminal C and cooling fan relay No.2 terminal B

―  ENGINE3 15 A fuse malfunction

―  Open circuit in wiring harness between main relay terminal C and cooling fan relay No.2 terminal B

•  PCM connector or terminal malfunction

•  Short to ground in wiring harness between the following terminals:

―  Cooling fan relay No.2 terminal C and fan control module No.2 terminal A

―  Cooling fan relay No.2 terminal D and PCM terminal 2AU

•  Open circuit in wiring harness between the following terminals:

―  Cooling fan relay No.2 terminal C and fan control module No.2 terminal A

―  Cooling fan relay No.2 terminal D and PCM terminal 2AU

•  Open circuit in wiring harness between fan control module No.2 terminal C and ground

•  Short to ground in wiring harness between fan control module No.2 terminal B and PCM terminal 2AW

•  Short to power supply in wiring harness between fan control module No.2 terminal B and PCM terminal 2AW

•  Open circuit in wiring harness between fan control module No.2 terminal B and PCM terminal 2AW

•  Fan control module No.2 malfunction

•  PCM malfunction

DTC P0481:00	Fan control module No.2 control circuit problem
DETECTION CONDITION	• The fan control module No.2 control voltage is abnormally high or abnormally low for a continuous 6 s relative to the PCM control signal. Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Not applicable
POSSIBLE CAUSE	• Fan control module No.2 connector or terminal malfunction • Cooling fan relay No.2 malfunction • Short to ground or open circuit in cooling fan relay No.2 power supply circuit ― Short to ground in wiring harness between positive battery terminal and cooling fan relay No.2 terminal A ― MAIN 200 A fuse malfunction ― ADD FAN DE 40 A fuse malfunction ― Open circuit in wiring harness between positive battery terminal and cooling fan relay No.1 terminal A • Short to ground or open circuit in cooling fan relay No.2 power supply circuit ― Short to ground in wiring harness between main relay terminal C and cooling fan relay No.2 terminal B ― ENGINE3 15 A fuse malfunction ― Open circuit in wiring harness between main relay terminal C and cooling fan relay No.2 terminal B • PCM connector or terminal malfunction • Short to ground in wiring harness between the following terminals: ― Cooling fan relay No.2 terminal C and fan control module No.2 terminal A ― Cooling fan relay No.2 terminal D and PCM terminal 2AU • Open circuit in wiring harness between the following terminals: ― Cooling fan relay No.2 terminal C and fan control module No.2 terminal A ― Cooling fan relay No.2 terminal D and PCM terminal 2AU • Open circuit in wiring harness between fan control module No.2 terminal C and ground • Short to ground in wiring harness between fan control module No.2 terminal B and PCM terminal 2AW • Short to power supply in wiring harness between fan control module No.2 terminal B and PCM terminal 2AW • Open circuit in wiring harness between fan control module No.2 terminal B and PCM terminal 2AW • Fan control module No.2 malfunction • PCM malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

Note

•  Recording can be facilitated using the screen capture function of the PC.

•  Record the freeze frame data/snap shot data.

—

Go to the next step.

2

INSPECT FAN CONTROL MODULE NO.2 CONNECTOR CONDITION

•  Switch the ignition OFF.

•  Disconnect the fan control module No.2 connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 16.

3

DETERMINE IF MALFUNCTION CAUSED BY POOR FAN CONTROL MODULE NO.2 POWER SUPPLY CIRCUIT

•  Verify that the fan control module No.2 connector is disconnected.

•  Switch the ignition ON (engine off).

•  Measure the voltage at fan control module No.2 terminal A (vehicle wiring harness side).

•  Is the voltage B+?

Yes

Go to Step 10.

No

Go to the next step.

4

INSPECT COOLING FAN RELAY NO.2 FOR MALFUNCTION

•  Switch the ignition OFF.

•  Remove cooling fan relay No.2.

•  Inspect cooling fan relay No.2.
(See RELAY INSPECTION

•  Is cooling fan relay No.2 normal?

Yes

Go to the next step.

No

Replace cooling fan relay No.2, then go to Step 16.

5

INSPECT COOLING FAN RELAY NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND

•  Verify that cooling fan relay No.2 is removed.

•  Verify that the fan control module No.2 connector is disconnected.

•  Measure the voltage at cooling fan relay No.2 terminal A (vehicle wiring harness side).

•  Is the voltage B+?

Yes

Go to the next step.

No

Inspect MAIN 200 A fuse and ADD FAN DE 40 A fuse.

•  If the fuse is blown:

―  Refer to the wiring diagram and verify if there is a common connector between positive battery terminal and cooling fan relay No.2 terminal A.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

•  Replace the blown fuse.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

•  Replace the blown fuse.

•  If the fuse is damaged:

―  Replace the damaged fuse.

•  If both fuses are normal:

―  Refer to the wiring diagram and verify if there is a common connector between positive battery terminal and cooling fan relay No.2 terminal A.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to Step 16.

6

INSPECT COOLING FAN RELAY NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND

•  Verify that cooling fan relay No.2 is removed.

•  Verify that the fan control module No.2 connector is disconnected.

•  Switch the ignition ON (engine off).

•  Measure the voltage at cooling fan relay No.2 terminal B (vehicle wiring harness side).

•  Is the voltage B+?

Yes

Go to the next step.

No

Inspect the ENGINE3 15 A fuse.

•  If the fuse is blown:

―  Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and cooling fan relay No.2 terminal B.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

•  Replace the blown fuse.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

•  Replace the fuse.

•  If the fuse is damaged:

―  Replace the fuse.

•  If the fuse is normal:

―  Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and cooling fan relay No.2 terminal B.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to Step 16.

7

INSPECT PCM CONNECTOR CONDITION

•  Switch the ignition OFF.

•  Disconnect the PCM connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 16.

8

INSPECT FAN CONTROL MODULE NO.2 POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

•  Verify that cooling fan relay No.2 is removed.

•  Verify that the fan control module No.2 connector and PCM connector are disconnected.

•  Inspect for continuity between the following terminals (vehicle wiring harness side) and ground.

―  Cooling fan relay No.2 terminal C

―  Cooling fan relay No.2 terminal D

•  Is there continuity?

Yes

Refer to the wiring diagram and verify if there is a common connector between the following terminals.

•  Cooling fan relay No.2 terminal C and fan control module No.2 terminal A

•  Cooling fan relay No.2 terminal D and PCM terminal 2AU

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

Go to Step 16.

No

Go to the next step.

9

INSPECT FAN CONTROL MODULE NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

•  Verify that cooling fan relay No.2 is removed.

•  Verify that the fan control module No.2 connector and PCM connector are disconnected.

•  Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side).

―  Cooling fan relay No.2 terminal C and fan control module No.2 terminal A

―  Cooling fan relay No.2 terminal D and PCM terminal 2AU

•  Is there continuity?

Yes

Go to Step 16.

No

Refer to the wiring diagram and verify if there is a common connector between the following terminals.

•  Cooling fan relay No.2 terminal C and fan control module No.2 terminal A

•  Cooling fan relay No.2 terminal D and PCM terminal 2AU

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to Step 16.

10

INSPECT FAN CONTROL MODULE NO.2 GROUND CIRCUIT FOR OPEN CIRCUIT

•  Verify that the fan control module No.2 connector is disconnected.

•  Switch the ignition OFF.

•  Inspect for continuity between fan control module No.2 terminal C (vehicle wiring harness side) and ground.

•  Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal C and ground.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Inspect the following.

―  Open circuit in wiring harness between fan control module No.2 and ground

―  Ground point lifting or loosening

•  Repair or replace the malfunctioning location.

Go to Step 16.

11

INSPECT PCM CONNECTOR CONDITION

•  Disconnect the PCM connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 16.

12

INSPECT FAN CONTROL MODULE NO.2 SIGNAL CIRCUIT FOR SHORT TO GROUND

•  Verify that the fan control module No.2 connector and PCM connector are disconnected.

•  Inspect for continuity between fan control module No.2 terminal B (vehicle wiring harness side) and ground.

•  Is there continuity?

Yes

Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal B and PCM terminal 2AW.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

Go to Step 16.

No

Go to the next step.

13

INSPECT FAN CONTROL MODULE NO.2 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

•  Verify that the fan control module No.2 connector and PCM connector are disconnected.

•  Switch the ignition ON (engine off).

•  Measure the voltage at fan control module No.2 terminal B (vehicle wiring harness side).

•  Is the voltage 0 V?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal B and PCM terminal 2AW.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to the power supply.

Go to Step 16.

14

INSPECT FAN CONTROL MODULE NO.2 SIGNAL CIRCUIT FOR OPEN CIRCUIT

•  Verify that the fan control module No.2 connector and PCM connector are disconnected.

•  Switch the ignition OFF.

•  Inspect the wiring harness for continuity between fan control module No.2 terminal B (vehicle wiring harness side) and PCM terminal 2AW (vehicle wiring harness side).

•  Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal B and PCM terminal 2AW.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to Step 16.

15

INSPECT FAN CONTROL MODULE NO.2

•  Inspect fan control module No.2.
(See FAN CONTROL MODULE INSPECTION [SKYACTIV-D 2.2].)

•  Is fan control module No.2 normal?

Yes

Go to the next step.

No

Replace the fan control module No.2, then go to the next step.

(See COOLING FAN MOTOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

16

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Reconnect all the disconnected connectors.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)].)

•  Perform the KOEO self-test.
(See KOEO/KOER SELF TEST [PCM (SKYACTIV-D 2.2)].)

•  Has DTC P0481:00 been recorded?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

No

Go to the next step.

17

VERIFY OTHER DTCs

•  Has any other DTC or pending code been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture function of the PC. • Record the freeze frame data/snap shot data.	—	Go to the next step.
2	INSPECT FAN CONTROL MODULE NO.2 CONNECTOR CONDITION • Switch the ignition OFF. • Disconnect the fan control module No.2 connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to Step 16.
3	DETERMINE IF MALFUNCTION CAUSED BY POOR FAN CONTROL MODULE NO.2 POWER SUPPLY CIRCUIT • Verify that the fan control module No.2 connector is disconnected. • Switch the ignition ON (engine off). • Measure the voltage at fan control module No.2 terminal A (vehicle wiring harness side). • Is the voltage B+?	Yes	Go to Step 10.
3		No	Go to the next step.
4	INSPECT COOLING FAN RELAY NO.2 FOR MALFUNCTION • Switch the ignition OFF. • Remove cooling fan relay No.2. • Inspect cooling fan relay No.2. (See RELAY INSPECTION • Is cooling fan relay No.2 normal?	Yes	Go to the next step.
4		No	Replace cooling fan relay No.2, then go to Step 16.
5	INSPECT COOLING FAN RELAY NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • Verify that cooling fan relay No.2 is removed. • Verify that the fan control module No.2 connector is disconnected. • Measure the voltage at cooling fan relay No.2 terminal A (vehicle wiring harness side). • Is the voltage B+?	Yes	Go to the next step.
5		No	Inspect MAIN 200 A fuse and ADD FAN DE 40 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify if there is a common connector between positive battery terminal and cooling fan relay No.2 terminal A. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. • Replace the blown fuse. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. • Replace the blown fuse. • If the fuse is damaged: ― Replace the damaged fuse. • If both fuses are normal: ― Refer to the wiring diagram and verify if there is a common connector between positive battery terminal and cooling fan relay No.2 terminal A. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 16.
6	INSPECT COOLING FAN RELAY NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • Verify that cooling fan relay No.2 is removed. • Verify that the fan control module No.2 connector is disconnected. • Switch the ignition ON (engine off). • Measure the voltage at cooling fan relay No.2 terminal B (vehicle wiring harness side). • Is the voltage B+?	Yes	Go to the next step.
6		No	Inspect the ENGINE3 15 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and cooling fan relay No.2 terminal B. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. • Replace the blown fuse. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. • Replace the fuse. • If the fuse is damaged: ― Replace the fuse. • If the fuse is normal: ― Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and cooling fan relay No.2 terminal B. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 16.
7	INSPECT PCM CONNECTOR CONDITION • Switch the ignition OFF. • Disconnect the PCM connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
7		No	Repair or replace the connector, then go to Step 16.
8	INSPECT FAN CONTROL MODULE NO.2 POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that cooling fan relay No.2 is removed. • Verify that the fan control module No.2 connector and PCM connector are disconnected. • Inspect for continuity between the following terminals (vehicle wiring harness side) and ground. ― Cooling fan relay No.2 terminal C ― Cooling fan relay No.2 terminal D • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Cooling fan relay No.2 terminal C and fan control module No.2 terminal A • Cooling fan relay No.2 terminal D and PCM terminal 2AU If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. Go to Step 16.
8		No	Go to the next step.
9	INSPECT FAN CONTROL MODULE NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Verify that cooling fan relay No.2 is removed. • Verify that the fan control module No.2 connector and PCM connector are disconnected. • Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side). ― Cooling fan relay No.2 terminal C and fan control module No.2 terminal A ― Cooling fan relay No.2 terminal D and PCM terminal 2AU • Is there continuity?	Yes	Go to Step 16.
9		No	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Cooling fan relay No.2 terminal C and fan control module No.2 terminal A • Cooling fan relay No.2 terminal D and PCM terminal 2AU If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 16.
10	INSPECT FAN CONTROL MODULE NO.2 GROUND CIRCUIT FOR OPEN CIRCUIT • Verify that the fan control module No.2 connector is disconnected. • Switch the ignition OFF. • Inspect for continuity between fan control module No.2 terminal C (vehicle wiring harness side) and ground. • Is there continuity?	Yes	Go to the next step.
10		No	Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal C and ground. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Inspect the following. ― Open circuit in wiring harness between fan control module No.2 and ground ― Ground point lifting or loosening • Repair or replace the malfunctioning location. Go to Step 16.
11	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
11		No	Repair or replace the connector, then go to Step 16.
12	INSPECT FAN CONTROL MODULE NO.2 SIGNAL CIRCUIT FOR SHORT TO GROUND • Verify that the fan control module No.2 connector and PCM connector are disconnected. • Inspect for continuity between fan control module No.2 terminal B (vehicle wiring harness side) and ground. • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal B and PCM terminal 2AW. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. Go to Step 16.
12		No	Go to the next step.
13	INSPECT FAN CONTROL MODULE NO.2 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the fan control module No.2 connector and PCM connector are disconnected. • Switch the ignition ON (engine off). • Measure the voltage at fan control module No.2 terminal B (vehicle wiring harness side). • Is the voltage 0 V?	Yes	Go to the next step.
13		No	Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal B and PCM terminal 2AW. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to the power supply. Go to Step 16.
14	INSPECT FAN CONTROL MODULE NO.2 SIGNAL CIRCUIT FOR OPEN CIRCUIT • Verify that the fan control module No.2 connector and PCM connector are disconnected. • Switch the ignition OFF. • Inspect the wiring harness for continuity between fan control module No.2 terminal B (vehicle wiring harness side) and PCM terminal 2AW (vehicle wiring harness side). • Is there continuity?	Yes	Go to the next step.
14		No	Refer to the wiring diagram and verify if there is a common connector between the fan control module No.2 terminal B and PCM terminal 2AW. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 16.
15	INSPECT FAN CONTROL MODULE NO.2 • Inspect fan control module No.2. (See FAN CONTROL MODULE INSPECTION [SKYACTIV-D 2.2].) • Is fan control module No.2 normal?	Yes	Go to the next step.
15		No	Replace the fan control module No.2, then go to the next step. (See COOLING FAN MOTOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
16	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Perform the KOEO self-test. (See KOEO/KOER SELF TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC P0481:00 been recorded?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
16		No	Go to the next step.
17	VERIFY OTHER DTCs • Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
17		No	DTC troubleshooting completed.