DTC P0652:00 [PCM (SKYACTIV-D 2.2)]

DTC P0652:00	Constant voltage power supply circuit low input
DETECTION CONDITION	• When the following condition is met, the output voltage of the 5 V power supply terminal is less than 2.36 V for a continuous 0.5 s. ― Battery positive voltage: 8—16 V 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 the engine torque/limits the maximum engine speed. • Inhibits the automatic diesel particulate filter regeneration control. • Inhibits the intake shutter valve control. • Inhibits the manual diesel particulate filter regeneration control. • Inhibits the EGR control. • Stops the G-vectoring control (GVC). • Limits the engine transaxle total control. • Inhibits engine-stop by i-stop control.
POSSIBLE CAUSE	• APP sensor connector or terminal malfunction • CMP sensor connector or terminal malfunction • EGR valve/EGR valve position sensor connector or terminal malfunction • Intake shutter valve/intake shutter valve position sensor connector or terminal malfunction • Exhaust gas pressure sensor No.1 connector or terminal malfunction • Exhaust gas pressure sensor No.2 connector or terminal malfunction • MAP sensor No.1 connector or terminal malfunction • Regulating valve actuator/regulating valve actuator position sensor connector or terminal malfunction • Coolant control valve/coolant control valve position sensor connector or terminal malfunction • Fuel pressure sensor (integrated with fuel injector No.2) connector or terminal malfunction • Fuel pressure sensor (integrated with fuel injector No.3) connector or terminal malfunction • Short to ground in wiring harness between the following terminals: ― APP sensor terminal F and PCM terminal 2AR ― CMP sensor terminal C and PCM terminal 1K ― EGR valve/EGR valve position sensor terminal B and PCM terminal 1AP ― Intake shutter valve/intake shutter valve position sensor terminal E and PCM terminal 1AZ ― Exhaust gas pressure sensor No.1 terminal A and PCM terminal 1CJ ― Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK ― MAP sensor No.1 terminal A and PCM terminal 1BJ ― Regulating valve actuator/regulating valve actuator position sensor terminal B and PCM terminal 1DE ― Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1BO ― Fuel pressure sensor (integrated with fuel injector No.2) terminal C and PCM terminal 1BX ― Fuel pressure sensor (integrated with fuel injector No.3) terminal C and PCM terminal 1BV • PCM connector or terminal malfunction • PCM malfunction

DTC P0652:00

Constant voltage power supply circuit low input

DETECTION CONDITION

• When the following condition is met, the output voltage of the 5 V power supply terminal is less than 2.36 V for a continuous 0.5 s.

― Battery positive voltage: 8—16 V

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 the engine torque/limits the maximum engine speed.

• Inhibits the automatic diesel particulate filter regeneration control.

• Inhibits the intake shutter valve control.

• Inhibits the manual diesel particulate filter regeneration control.

• Inhibits the EGR control.

• Stops the G-vectoring control (GVC).

• Limits the engine transaxle total control.

• Inhibits engine-stop by i-stop control.

POSSIBLE CAUSE

• APP sensor connector or terminal malfunction

• CMP sensor connector or terminal malfunction

• EGR valve/EGR valve position sensor connector or terminal malfunction

• Intake shutter valve/intake shutter valve position sensor connector or terminal malfunction

• Exhaust gas pressure sensor No.1 connector or terminal malfunction

• Exhaust gas pressure sensor No.2 connector or terminal malfunction

• MAP sensor No.1 connector or terminal malfunction

• Regulating valve actuator/regulating valve actuator position sensor connector or terminal malfunction

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

• Fuel pressure sensor (integrated with fuel injector No.2) connector or terminal malfunction

• Fuel pressure sensor (integrated with fuel injector No.3) connector or terminal malfunction

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

― APP sensor terminal F and PCM terminal 2AR

― CMP sensor terminal C and PCM terminal 1K

― EGR valve/EGR valve position sensor terminal B and PCM terminal 1AP

― Intake shutter valve/intake shutter valve position sensor terminal E and PCM terminal 1AZ

― Exhaust gas pressure sensor No.1 terminal A and PCM terminal 1CJ

― Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK

― MAP sensor No.1 terminal A and PCM terminal 1BJ

― Regulating valve actuator/regulating valve actuator position sensor terminal B and PCM terminal 1DE

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

― Fuel pressure sensor (integrated with fuel injector No.2) terminal C and PCM terminal 1BX

― Fuel pressure sensor (integrated with fuel injector No.3) terminal C and PCM terminal 1BV

• PCM connector or terminal malfunction

• PCM malfunction

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 P0652:00 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 APP SENSOR CONNECTOR CONDITION • Switch the ignition OFF. • Disconnect the APP 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 15.
4	INSPECT CMP SENSOR CONNECTOR CONDITION • Disconnect the CMP 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 15.
5	INSPECT EGR VALVE/EGR VALVE POSITION SENSOR CONNECTOR CONDITION • Disconnect the EGR valve/EGR valve position sensor connectors. • 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 15.
6	INSPECT INTAKE SHUTTER VALVE/INTAKE SHUTTER VALVE POSITION SENSOR CONNECTOR CONDITION • Disconnect the intake shutter valve/intake shutter valve position sensor connectors. • 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 15.
7	INSPECT EXHAUST GAS PRESSURE SENSOR NO.1 CONNECTOR CONDITION • Disconnect the exhaust gas pressure sensor No.1 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 15.
8	INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 CONNECTOR CONDITION • Disconnect the exhaust gas pressure sensor 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 15.
9	INSPECT MAP SENSOR NO.1 CONNECTOR CONDITION • Disconnect the MAP sensor No.1 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 15.
10	INSPECT REGULATING VALVE ACTUATOR/REGULATING VALVE ACTUATOR POSITION SENSOR CONNECTOR CONDITION • Disconnect the regulating valve actuator/regulating valve actuator position sensor connectors. • 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 15.
11	INSPECT COOLANT CONTROL VALVE/COOLANT CONTROL VALVE POSITION SENSOR CONNECTOR CONDITION • 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 15.
12	INSPECT FUEL SENSOR (INTEGRATED WITH FUEL INJECTOR NO.2, NO.3) CONNECTOR CONDITION • Disconnect the fuel sensor (integrated with fuel injector No.2, 3) 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 15.
13	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 the next step.
14	INSPECT EACH POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that the connectors of the APP sensor, sensor, CMP sensor, EGR valve/EGR valve position sensor, intake shutter valve/intake shutter valve position sensor, exhaust gas pressure sensor No.1, exhaust gas pressure sensor No.2, MAP sensor No.1, regulating valve actuator/regulating valve actuator position sensor, coolant control valve/engine control valve position sensor, or the fuel pressure sensor (integrated with fuel injector No.2, 3) are disconnected • Inspect for continuity between the following terminals (vehicle wiring harness side) and ground. ― APP sensor terminal F ― CMP sensor terminal C ― EGR valve/EGR valve position sensor terminal B ― The intake shutter valve/intake shutter valve position sensor terminal E. ― Exhaust gas pressure sensor No.1 terminal A ― Exhaust gas pressure sensor No.2 terminal A ― MAP sensor No.1 terminal A ― Regulating valve actuator/regulating valve actuator position sensor terminal B ― Coolant control valve/coolant control valve position sensor terminal C ― Fuel pressure sensor (integrated with fuel injector No.2) terminal C ― Fuel pressure sensor (integrated with fuel injector No.3) terminal C • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • APP sensor terminal F and PCM terminal 2AR • CMP sensor terminal C and PCM terminal 1K • EGR valve/EGR valve position sensor terminal B and PCM terminal 1AP • Intake shutter valve/intake shutter valve position sensor terminal E and PCM terminal 1AZ • Exhaust gas pressure sensor No.1 terminal A and PCM terminal 1CJ • Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK • MAP sensor No.1 terminal A and PCM terminal 1BJ • Regulating valve actuator/regulating valve actuator position sensor terminal B and PCM terminal 1DE • Coolant control valve/coolant control valve position sensor terminal C and PCM terminal 1BO • Fuel pressure sensor (integrated with fuel injector No.2) terminal C and PCM terminal 1BX • Fuel pressure sensor (integrated with fuel injector No.3) terminal C and PCM terminal 1BV 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 the next step.
No	Go to the next step.
15	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)].) • Switch the ignition ON (engine off) and wait for 30 s. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC P0652:00 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.
16	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

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.

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 P0652:00 been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

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

Go to the next step.

INSPECT APP SENSOR CONNECTOR CONDITION

• Switch the ignition OFF.

• Disconnect the APP 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.

Repair or replace the connector, then go to Step 15.

INSPECT CMP SENSOR CONNECTOR CONDITION

• Disconnect the CMP 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.

Repair or replace the connector, then go to Step 15.

INSPECT EGR VALVE/EGR VALVE POSITION SENSOR CONNECTOR CONDITION

• Disconnect the EGR valve/EGR valve position sensor connectors.

• 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.

Repair or replace the connector, then go to Step 15.

INSPECT INTAKE SHUTTER VALVE/INTAKE SHUTTER VALVE POSITION SENSOR CONNECTOR CONDITION

• Disconnect the intake shutter valve/intake shutter valve position sensor connectors.

• 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.

Repair or replace the connector, then go to Step 15.

INSPECT EXHAUST GAS PRESSURE SENSOR NO.1 CONNECTOR CONDITION

• Disconnect the exhaust gas pressure sensor No.1 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.

Repair or replace the connector, then go to Step 15.

INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 CONNECTOR CONDITION

• Disconnect the exhaust gas pressure sensor 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.

Repair or replace the connector, then go to Step 15.

INSPECT MAP SENSOR NO.1 CONNECTOR CONDITION

• Disconnect the MAP sensor No.1 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.

Repair or replace the connector, then go to Step 15.

INSPECT REGULATING VALVE ACTUATOR/REGULATING VALVE ACTUATOR POSITION SENSOR CONNECTOR CONDITION

• Disconnect the regulating valve actuator/regulating valve actuator position sensor connectors.

• 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.

Repair or replace the connector, then go to Step 15.

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

• 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.

Repair or replace the connector, then go to Step 15.

INSPECT FUEL SENSOR (INTEGRATED WITH FUEL INJECTOR NO.2, NO.3) CONNECTOR CONDITION

• Disconnect the fuel sensor (integrated with fuel injector No.2, 3) 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.

Repair or replace the connector, then go to Step 15.

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.

Repair or replace the connector, then go to the next step.

INSPECT EACH POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

• Verify that the connectors of the APP sensor, sensor, CMP sensor, EGR valve/EGR valve position sensor, intake shutter valve/intake shutter valve position sensor, exhaust gas pressure sensor No.1, exhaust gas pressure sensor No.2, MAP sensor No.1, regulating valve actuator/regulating valve actuator position sensor, coolant control valve/engine control valve position sensor, or the fuel pressure sensor (integrated with fuel injector No.2, 3) are disconnected

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

― APP sensor terminal F

― CMP sensor terminal C

― EGR valve/EGR valve position sensor terminal B

― The intake shutter valve/intake shutter valve position sensor terminal E.

― Exhaust gas pressure sensor No.1 terminal A

― Exhaust gas pressure sensor No.2 terminal A

― MAP sensor No.1 terminal A

― Regulating valve actuator/regulating valve actuator position sensor terminal B

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

― Fuel pressure sensor (integrated with fuel injector No.2) terminal C

― Fuel pressure sensor (integrated with fuel injector No.3) terminal C

• Is there continuity?

Yes

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

• APP sensor terminal F and PCM terminal 2AR

• CMP sensor terminal C and PCM terminal 1K

• EGR valve/EGR valve position sensor terminal B and PCM terminal 1AP

• Intake shutter valve/intake shutter valve position sensor terminal E and PCM terminal 1AZ

• Exhaust gas pressure sensor No.1 terminal A and PCM terminal 1CJ

• Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK

• MAP sensor No.1 terminal A and PCM terminal 1BJ

• Regulating valve actuator/regulating valve actuator position sensor terminal B and PCM terminal 1DE

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

• Fuel pressure sensor (integrated with fuel injector No.2) terminal C and PCM terminal 1BX

• Fuel pressure sensor (integrated with fuel injector No.3) terminal C and PCM terminal 1BV

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 the next step.

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)].)

• Switch the ignition ON (engine off) and wait for 30 s.

• Display the DTCs using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

• Has DTC P0652:00 been recorded?