DTC P2BF7:00 [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))]

id0102s9168200

DTC P2BF7:00

Exhaust shutter valve position sensor circuit high input

DETECTION CONDITION

•  If the input voltage at the PCM terminal 1AL is more than 4.94 V for 5 s, the PCM determines that the exhaust shutter valve position sensor circuit has a malfunction.

MONITORING CONDITIONS

―  Battery voltage: 8 V or more

Diagnostic support note

•  This is a continuous monitor (other).

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

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  PCM restricts engine torque.

POSSIBLE CAUSE

•  Exhaust shutter valve/exhaust shutter valve position sensor connector or terminals malfunction

•  PCM connector or terminals malfunction

•  Short to power supply in wiring harness between exhaust shutter valve terminal C and PCM terminal 1D

•  Exhaust shutter valve position sensor power supply circuit and signal circuit are shorted to each other

•  Open circuit in wiring harness between exhaust shutter valve terminal D and PCM terminal 1BG

•  Exhaust shutter valve position sensor (built-into exhaust shutter valve) malfunction

•  PCM malfunction

DTC P2BF7:00	Exhaust shutter valve position sensor circuit high input
DETECTION CONDITION	• If the input voltage at the PCM terminal 1AL is more than 4.94 V for 5 s, the PCM determines that the exhaust shutter valve position sensor circuit has a malfunction. MONITORING CONDITIONS ― Battery voltage: 8 V or more Diagnostic support note • This is a continuous monitor (other). • The master warning light illuminates if the PCM detects the above malfunction condition during the first drive cycle. • The check engine light does not illuminate. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• PCM restricts engine torque.
POSSIBLE CAUSE	• Exhaust shutter valve/exhaust shutter valve position sensor connector or terminals malfunction • PCM connector or terminals malfunction • Short to power supply in wiring harness between exhaust shutter valve terminal C and PCM terminal 1D • Exhaust shutter valve position sensor power supply circuit and signal circuit are shorted to each other • Open circuit in wiring harness between exhaust shutter valve terminal D and PCM terminal 1BG • Exhaust shutter valve position sensor (built-into exhaust shutter valve) malfunction • PCM malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture of the PC function. • Record the freeze frame data/snap shot data.	—	Go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related service information availability. • Is any related service information available?	Yes	Perform repair or diagnosis according to the available service information. • If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT EXHAUST SHUTTER VALVE CONNECTOR CONDITION • Switch the ignition off. • Disconnect the exhaust shutter valve connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 9.
3		No	Go to the next step.
4	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 9.
4		No	Go to the next step.
5	INSPECT EXHAUST SHUTTER VALVE POSITION SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the exhaust shutter valve and PCM connectors 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 exhaust shutter valve terminal C (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between exhaust shutter valve terminal C and PCM terminal 1D. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to power supply. Go to Step 9.
6	INSPECT EXHAUST SHUTTER VALVE POSITION SENSOR POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT TO EACH OTHER • Verify that the exhaust shutter valve and PCM connectors are disconnected. • Switch the ignition off. • Inspect for continuity between exhaust shutter valve terminals C and E (wiring harness-side). • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Exhaust shutter valve terminal C—PCM terminal 1D • Exhaust shutter valve terminal E—PCM terminal 1P If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to each other. Go to Step 9.
6		No	Go to the next step.
7	INSPECT EXHAUST SHUTTER VALVE POSITION SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT • Verify that the exhaust shutter valve and PCM connectors are disconnected. • Inspect for continuity between exhaust shutter valve terminal D (wiring harness-side) and PCM terminal 1BG (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
7		No	Refer to the wiring diagram and verify whether or not there is a common connector between exhaust shutter valve terminal D and PCM terminal 1BG. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 9.
8	INSPECT EXHAUST SHUTTER VALVE POSITION SENSOR • Reconnect all disconnected connectors. • Inspect the exhaust shutter valve position sensor. (See EXHAUST SHUTTER VALVE POSITION SENSOR INSPECTION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].) • Is there any malfunction?	Yes	Replace the exhaust shutter valve, then go to next step. (See EXHAUST SHUTTER VALVE POSITION SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)
8		No	Go to the next step.
9	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) • Perform the KOEO or KOER self test. (See KOEO/KOER SELF TEST [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) • Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].) Go to the next step.
9		No	Go to the next step.
10	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].)
10		No	DTC troubleshooting completed.