ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P2009 TGV CONTROL CIRCUIT LOW BANK 1
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION">, and Inspection Mode Inspection Mode > PROCEDURE">
.
WIRING DIAGRAM:
Engine electrical system Engine Electrical System">
STEP | CHECK | YES | NO |
1.CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ACTUATOR RH CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM.
3) Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(B134) No. 25 (+) — Chassis ground (−):
(B134) No. 14 (+) — Chassis ground (−):
Is the voltage 5 V or more?
Repair the short circuit to power in harness between ECM connector and tumble generator valve actuator RH connector.
Replace the tumble generator valve actuator RH. Tumble Generator Valve Actuator">
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of tumble generator valve motor.
Judge as NG when the overcurrent signal is sent from IC after tumble generator valve driving IC diagnosis.
2. COMPONENT DESCRIPTION
(1) | Engine control module (ECM) | (2) | Tumble generator valve | (3) | Battery |
3. EXECUTION CONDITION
Secondary Parameters | Execution condition |
Battery voltage | ≥ 10.9 V |
TGV command | = Open or = closed |
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Malfunction Criteria | Threshold Value |
Overcurrent signal from driver IC Short circuit to GND is detected when IC current > 16 A or Short circuit to B+ is detected when IC current > 14 A | = ON |
Time Needed for Diagnosis: 1 second
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Disassembly
GLASS/WINDOWS/MIRRORS > Outer Mirror AssemblyDISASSEMBLYCAUTION:When removing the mirror - repair, be careful not to damage the back surface of mirror - repair with a flat tip screwdriver.1. Operate the remote control mirror switch to face the mirror - repair upward.2. Disconnect the ground cable ...
Ignition timing Inspection
MECHANICAL(H4DO) > Ignition TimingINSPECTIONCAUTION:After warming-up, engine becomes very hot. Be careful not to burn yourself at measurement.1. Before checking the ignition timing, check the following item:(1) Check the air cleaner element is free from clogging, spark plugs are in good condition ...
SRS airbag system warning light
WARNING
If the warning light exhibits any of
the following conditions, there may
be a malfunction in the seatbelt
pretensioners and/or SRS airbag
system. Immediately take your vehicle
to your nearest SUBARU dealer
to have the system checked. Unless
checked and properly repaired, the
seatb ...