DTC P2008:00 [MZR 1.6]

id0102h3707000

DTC P2008:00

Variable tumble control circuit malfunction
DETECTION CONDITION
•  If the PCM turns the variable tumble shutter valve actuator to open or close but voltages do not coincide with the PCM signal voltages, the PCM determines that the variable tumble control circuit has a malfunction.
•  Variable tumble control IC error.
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Variable tumble shutter valve actuator connector or terminals malfunction
•  PCM connector or terminals malfunction
•  Short to ground in wiring harness between the following terminals:
―  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
―  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
•  Short to power supply in wiring harness between the following terminals:
―  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
―  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
•  Open circuit in wiring harness between the following terminals:
―  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
―  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
•  Variable tumble shutter valve actuator malfunction
•  PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA (Mode 2)/snapshot data on repair order, then 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.
No
Go to the next step.
3
INSPECT VARIABLE TUMBLE SHUTTER VALVE ACTUATOR CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the variable tumble shutter valve actuator connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 9.
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 or terminals, then go to Step 9.
No
Go to the next step.
5
INSPECT VARIABLE TUMBLE SHUTTER VALVE ACTUATOR CIRCUIT FOR SHORT TO GROUND
•  Verify that the variable tumble shutter valve actuator and PCM connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  Variable tumble shutter valve actuator terminal A
―  Variable tumble shutter valve actuator terminal B
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
•  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
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 ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to Step 9.
No
Go to the next step.
6
INSPECT VARIABLE TUMBLE SHUTTER VALVE ACTUATOR CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the variable tumble shutter valve actuator 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 following terminals (wiring harness-side):
―  Variable tumble shutter valve actuator terminal A
―  Variable tumble shutter valve actuator terminal B
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
•  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
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.
7
INSPECT VARIABLE TUMBLE SHUTTER VALVE ACTUATOR CIRCUIT FOR OPEN CIRCUIT
•  Verify that the variable tumble shutter valve actuator and PCM connectors are disconnected.
•  Switch the ignition off.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
―  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Variable tumble shutter valve actuator terminal A—PCM terminal 2T
•  Variable tumble shutter valve actuator terminal B—PCM terminal 2Y
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 VARIABLE TUMBLE SHUTTER VALVE ACTUATOR
•  Inspect the variable tumble shutter valve actuator.
•  Is there any malfunction?
Yes
Replace the variable tumble shutter valve actuator, then go to the next step.
(See VARIABLE TUMBLE SHUTTER VALVE ACTUATOR REMOVAL/INSTALLATION [MZR 1.6].)
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.
•  Start the engine.
•  Perform the KOEO or KOER self test.
•  Is the PENDING CODE for this DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
10
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR 1.6].)
No
DTC troubleshooting completed.