Inspection Procedure

HINT:

Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (See FREEZE FRAME DATA ).

INSPECT INTAKE MANIFOLD (SCV OPERATION)
1. Inspect the swirl control valve (see ON-VEHICLE INSPECTION ).
NG: REPLACE INTAKE MANIFOLD

OK: Go to next step

CHECK HARNESS AND CONNECTOR (ECM - SCV)

Disconnect the E6 ECM connector.
Disconnect the E53 DC motor for SCV connector.

Measure the resistance according to the value (s) in the table below.

Standard resistance (Check for open)

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
IA1- (E6-1) - E53-2	Below 1 Ω
IA1+ (E6-2) - E53-1	Below 1 Ω

Standard resistance (Check for short)

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
IA1- (E6-1) or E53-2 - Body ground	10 kΩ or higher
IA1+ (E6-2) or E53-1 - body ground	10 kΩ or higher

Fig 1: Identifying E6 ECM Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Reconnect the ECM connector.
Reconnect the DC motor for SCV connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK WHETHER DTC OUTPUT RECURS (DTC P2009 OR P2010)

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester on.
Clear DTCs.
Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.

Read DTCs.

Result

DTC RESULT REFERENCE

Display (DTC Output)	Proceed to
P2009 or P2010	A
No DTC	B

B: CHECK FOR INTERMITTENT PROBLEMS

A: REPLACE ECM