DTC U063F:00 [PCM (SKYACTIV-D 2.2)]

id0102j5053600

DTC U063F:00

SENT communication: communication error to coolant control valve position sensor

DETECTION CONDITION

•  When any one of the following conditions is met:

―  Malfunction in SENT communication line between coolant control valve position sensor and PCM.

―  The PCM detected a SENT communication type communication error from the coolant control valve position sensor.

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  Limits engine torque.

•  Inhibits the EGR control.

POSSIBLE CAUSE

•  Error in SENT communication line between coolant control valve position sensor and PCM

•  Coolant control valve/engine control valve position sensor connector or terminal malfunction

•  PCM connector or terminal malfunction

•  Open circuit in wiring harness between the following terminals:

―  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

―  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

―  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

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

―  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

―  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

―  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

•  Short to power supply in wiring harness between the following terminals

―  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

―  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

―  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

•  Short circuit in each wiring harness of coolant control valve position sensor.

•  Engine coolant valve position sensor malfunction

•  PCM malfunction

DTC U063F:00	SENT communication: communication error to coolant control valve position sensor
DETECTION CONDITION	• When any one of the following conditions is met: ― Malfunction in SENT communication line between coolant control valve position sensor and PCM. ― The PCM detected a SENT communication type communication error from the coolant control valve position sensor. Diagnostic support note • This is a continuous monitor (CCM). • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Limits engine torque. • Inhibits the EGR control.
POSSIBLE CAUSE	• Error in SENT communication line between coolant control valve position sensor and PCM • Coolant control valve/engine control valve position sensor connector or terminal malfunction • PCM connector or terminal malfunction • Open circuit in wiring harness between the following terminals: ― Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO ― Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C ― Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN • Short to ground in wiring harness between the following terminals: ― Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO ― Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C ― Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN • Short to power supply in wiring harness between the following terminals ― Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO ― Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C ― Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN • Short circuit in each wiring harness of coolant control valve position sensor. • Engine coolant valve position sensor 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

VERIFY OTHER RELATED DTCs

•  Switch the ignition OFF and then switch it ON (engine off).

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Has any DTC other than U063F:00 been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

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

No

Go to the next step.

3

INSPECT COOLANT CONTROL VALVE/COOLANT CONTROL VALVE POSITION SENSOR CONNECTOR CONDITION

•  Switch the ignition OFF.

•  Disconnect the coolant control valve/coolant control valve position sensor 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 10.

4

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 10.

5

INSPECT COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR OPEN CIRCUIT

•  Switch the ignition OFF.

•  Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected.

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

―  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

―  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

―  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

•  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 following terminals.

•  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

•  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

•  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

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 10.

6

INSPECT COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR SHORT TO GROUND

•  Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected.

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

―  Coolant control valve/coolant control valve position sensor terminal C

―  Coolant control valve/coolant control valve position sensor terminal D

―  Coolant control valve/coolant control valve position sensor terminal E

•  Is there continuity?

Yes

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

•  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

•  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

•  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

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 10.

No

Go to the next step.

7

INSPECT EACH WIRING HARNESS OF COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR SHORT CIRCUIT

•  Switch the ignition OFF.

•  Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected.

•  Inspect for continuity between coolant control valve/coolant control valve position sensor terminals C, D, and E (vehicle wiring harness side).

•  Is there continuity?

Yes

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

•  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

•  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

•  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

If there is a common connector:

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

―  Repair or replace the malfunctioning location.

If there is no common connector:

―  Repair or replace the malfunctioning wiring harness.

Go to Step 10.

No

Go to the next step.

8

INSPECT COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY

•  Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected.

•  Switch the ignition ON (engine off).

Note

•  Another DTC may be stored by the PCM detecting an open circuit.

•  Measure the voltage at the following terminals (vehicle wiring harness side).

―  Coolant control valve/coolant control valve position sensor terminal C

―  Coolant control valve/coolant control valve position sensor terminal D

―  Coolant control valve/coolant control valve position sensor terminal E

•  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 following terminals.

•  Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO

•  Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C

•  Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN

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 10.

9

INSPECT COOLANT CONTROL VALVE POSITION SENSOR

•  Inspect the coolant control valve position sensor.
(See COOLANT CONTROL VALVE POSITION SENSOR INSPECTION [SKYACTIV-D 2.2].)

•  Is the coolant control valve position sensor normal?

Yes

Go to the next step.

No

Replace the coolant control valve position sensor, then go to the next step.

(See COOLANT CONTROL VALVE POSITION SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

10

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

•  Has DTC U063F: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.

11

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	VERIFY OTHER RELATED DTCs • Switch the ignition OFF and then switch it ON (engine off). • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Has any DTC other than U063F:00 been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
2		No	Go to the next step.
3	INSPECT COOLANT CONTROL VALVE/COOLANT CONTROL VALVE POSITION SENSOR CONNECTOR CONDITION • Switch the ignition OFF. • Disconnect the coolant control valve/coolant control valve position sensor 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.
3		No	Repair or replace the connector, then go to Step 10.
4	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.
4		No	Repair or replace the connector, then go to Step 10.
5	INSPECT COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR OPEN CIRCUIT • Switch the ignition OFF. • Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected. • Inspect between the following terminals (vehicle wiring harness side) for continuity. ― Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO ― Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C ― Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN • Is there continuity?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO • Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C • Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN 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 10.
6	INSPECT COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR SHORT TO GROUND • Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected. • Inspect for continuity between the following terminals (vehicle wiring harness side) and ground. ― Coolant control valve/coolant control valve position sensor terminal C ― Coolant control valve/coolant control valve position sensor terminal D ― Coolant control valve/coolant control valve position sensor terminal E • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO • Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C • Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN 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 10.
6		No	Go to the next step.
7	INSPECT EACH WIRING HARNESS OF COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR SHORT CIRCUIT • Switch the ignition OFF. • Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected. • Inspect for continuity between coolant control valve/coolant control valve position sensor terminals C, D, and E (vehicle wiring harness side). • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO • Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C • Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN If there is a common connector: ― Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short circuit to determine the malfunctioning location. ― Repair or replace the malfunctioning location. If there is no common connector: ― Repair or replace the malfunctioning wiring harness. Go to Step 10.
7		No	Go to the next step.
8	INSPECT COOLANT CONTROL VALVE POSITION SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the coolant control valve/coolant control valve position sensor connector and the PCM connector are disconnected. • Switch the ignition ON (engine off). Note • Another DTC may be stored by the PCM detecting an open circuit. • Measure the voltage at the following terminals (vehicle wiring harness side). ― Coolant control valve/coolant control valve position sensor terminal C ― Coolant control valve/coolant control valve position sensor terminal D ― Coolant control valve/coolant control valve position sensor terminal E • Is the voltage 0 V?	Yes	Go to the next step.
8		No	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1 BO • Coolant control valve/coolant control valve position sensor terminal D to PCM terminal 1C • Coolant control valve/coolant control valve position sensor terminal E to PCM terminal 1BN 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 10.
9	INSPECT COOLANT CONTROL VALVE POSITION SENSOR • Inspect the coolant control valve position sensor. (See COOLANT CONTROL VALVE POSITION SENSOR INSPECTION [SKYACTIV-D 2.2].) • Is the coolant control valve position sensor normal?	Yes	Go to the next step.
9		No	Replace the coolant control valve position sensor, then go to the next step. (See COOLANT CONTROL VALVE POSITION SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
10	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 or KOER self-test. (See KOEO/KOER SELF TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC U063F: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].)
10		No	Go to the next step.
11	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)].)
11		No	DTC troubleshooting completed.