Content .. 28 29 30 31 ..

Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 30

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES–75

(a) Disconnect the OCV connector.
(b) Measure the resistance between the terminals of the

OCV.
Standard Resistance

(a) Disconnect the B3 ECM connector.
(b) Disconnect the B12 or B26 OCV connector.
(c) Check the resistance.

Standard Resistance for Bank 1

Standard Resistance for Bank 2

(d) Reconnect the ECM connector.
(e) Reconnect the OCV connector.

CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

A095415E05

Tester Connections

Specified Conditions

1 - 2

6.9 to 7.9

Ω at 20°C (68°F)

REPLACE CAMSHAFT TIMING OIL
CONTROL VALVE ASSEMBLY (See page

ES-

414

)

CHECK HARNESS AND CONNECTOR (OCV - ECM)

B12

B26

Bank 1

Bank 2

Wire Harness Side:

ECM Connector

Front View

OCV Connector

OC1+

OC2-

OC2+

OC1-

A133481E01

Tester Connections

Specified Conditions

B12-1 - OC1+ (B3-17)

Below 1

Ω

B12-1 - Body ground

10 k

Ω or higher

B12-2 - OC1- (B3-16)

Below 1

Ω

B12-2 - Body ground

10 k

Ω or higher

Tester Connections

Specified Conditions

B26-1 - OC2+ (B3-15)

Below 1

Ω

B26-1 - Body ground

10 k

Ω or higher

B26-2 - OC2- (B3-14)

Below 1

Ω

B26-2 - Body ground

10 k

Ω or higher

REPAIR OR REPLACE HARNESS OR
CONNECTOR

REPLACE ECM (See page

ES-446

)

ES–76

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

HINT:
If DTC P0011, P0012, P0021 or P0022 is present, check the VVT (Variable Valve Timing) system.

DESCRIPTION

Refer to DTC P0010 (See page

ES-67

MONITOR DESCRIPTION

The ECM optimizes the intake valve timing using the VVT (Variable Valve Timing) system to control the
intake camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the VVT controller.
The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil
pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.
If the difference between the target and actual intake valve timings is large, and changes in actual intake
valve timing are small, the ECM interprets this as the VVT controller stuck malfunction and sets a DTC.
Example:
A DTC is set when the following conditions 1), 2) and 3) are met:
1) The difference between the target and actual intake valve timings is more than 5

°CA (Crankshaft

Angle) and the condition continues for more than 4.5 seconds.
2) It takes 5 seconds or more to change the valve timing by 5

°CA.

3) After above conditions 1) and 2) are met, the OCV is forcibly activated 63 times or more.
DTCs P0011 and P0021 (Advanced Cam Timing) are subject to 1 trip detection logic.

DTC

P0011

Camshaft Position "A" - Timing Over-Advanced
or System Performance (Bank 1)

DTC

P0012

Camshaft Position "A" - Timing Over-Retarded
(Bank 1)

DTC

P0021

Camshaft Position "A" - Timing Over-Advanced
or System Performance (Bank 2)

DTC

P0022

Camshaft Position "A" - Timing Over-Retarded
(Bank 2)

DTC No.

DTC Detection Conditions

Trouble Areas

P0011

P0021

Advanced cam timing:
With warm engine and engine speed of between 500 rpm and
4,000 rpm, all conditions (a), (b) and (c) met (1 trip detection
logic)
(a) Difference between target and actual intake valve timings
more than 5

°CA (Crankshaft Angle) for 4.5 seconds

(b) Current intake valve timing fixed (timing changes less than
5

°CA in 5 seconds)

°CA of

maximum delayed timing (malfunction in advance timing)

•

Valve timing

•

Oil control valve (OCV)

•

OCV filter

•

Camshaft timing gear assembly

•

ECM

P0012
P0022

Retarded cam timing:
With warm engine and engine speed of between 500 rpm and
4,000 rpm, all conditions (a), (b) and (c) met (2 trip detection
logic)
(a) Difference between target and actual intake valve timings
more than 5

°CA (Crankshaft Angle) for 4.5 seconds

(b) Current intake valve timing fixed (timing changes less than
5

°CA in 5 seconds)

°CA or less of

maximum delayed timing (malfunction in retarded timing)

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES–77

DTCs P0012 and P0022 (Retarded Cam Timing) are subject to 2 trip detection logic.
These DTCs indicate that the VVT controller cannot operate properly due to OCV malfunctions or the
presence of foreign objects in the OCV.
The monitor will not run unless the following conditions are met:
•

The engine is warm (the engine coolant temperature is 75

°C [167°F] or more).

•

The vehicle has been driven at more than 40 mph (64 km/h) for 3 minutes.

•

The engine has idled for 3 minutes.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

If the difference between the target and actual camshaft timings is greater than the specified value, the
ECM operates the VVT actuator.
Then, the ECM monitors the camshaft timing change for 5 seconds.

WIRING DIAGRAM

Refer to DTC P0010 (See page

ES-69

INSPECTION PROCEDURE

HINT:

•

If DTC P0011 or P0012 is displayed, check the bank 1 VVT system circuit.

Related DTCs

P0011: Advanced camshaft timing (bank 1)
P0012: Retard camshaft timing (bank 1)
P0021: Advanced camshaft timing (bank 2)
P0022: Retard camshaft timing (bank 2)

Required Sensors/Components (Main)

VVT OCV and VVT Actuator

Required Sensors/Components (Related)

Crankshaft position sensor, Camshaft position sensor and Engine
coolant temperature sensor

Frequency of Operation

Once per driving cycle

Duration

Less than 10 seconds

MIL Operation

P0011 and P0021: Immediate
P0012 and P0022: 2 driving cycles

Sequence of Operation

None

Monitor runs whenever following DTCs not present

P0100 - P0103 (MAF sensor)
P0115 - P0118 (ECT sensor)
P0125 (Insufficient ECT for closed loop)
P0335 (CKP sensor)
P0340 (CMP sensor)
P0351 - P0356 (Igniter)

Battery voltage

11 V or more

Engine RPM

500 to 4,000 rpm

Engine coolant temperature

75 to 100

°C (167 to 212°F)

All of following conditions are met

Deactivation of actual valve timing and target valve timing

More than 5

°CA (crankshaft angle)

Valve timing

No change at advanced (retarded) valve timing

Abnormal bank

Advanced timing over

(Valve timing is out of specified range)

Retarded timing over

(Valve timing is out of specified range)

Bank 1

P0011

P0012

Bank 2

P0021

P0022

ES–78

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

•

Bank 1 refers to the bank that includes cylinder No. 1.

•

If DTC P0021 or P0022 is displayed, check the bank 2 VVT system circuit.

•

Bank 2 refers to the bank that does not include cylinder No. 1.

•

Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle
was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and
other data, from the time the malfunction occurred.

(a) Connect an intelligent tester to the DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Select the following menu items: DIAGNOSIS /

ENHANCED OBD II / DTC INFO / CURRENT CODES.

(d) Read DTCs.

Result

HINT:
If any DTCs other than P0011, P0012, P0021 or P0022
are output, troubleshoot those DTCs first.

(a) Connect an intelligent tester to the DLC3.
(b) Start the engine and turn the tester ON.
(c) Warm up the engine.
(d) Select the following menu items: DIAGNOSIS /

ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1.

(e) Check the engine speed while operating the Oil Control

Valve (OCV) using the tester.

(a) Connect an intelligent tester to the DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Clear DTCs (See page

ES-38

(d) Start the engine and warm it up.

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR
P0022)

Display (DTC Output)

Proceed to

P0011, P0012, P0021 or P0022

P0011, P0012, P0021 or P0022 and other DTCs

GO TO DTC CHART (See page