TIMER CONTROL VALVE (TCV) INSPECTION [WLT-1, WLT-2]

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1.  Carry out the “Timer Control Valve (TCV) Control Inspection”. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [WLT-1, WLT-2].)

2.  If not as specified, perform the further inspection for the TCV.

Continuity Inspection

Note

•  Perform the following test only when directed.

1.  Disconnect the negative battery cable.

2.  Disconnect the FIP connector (8-pin terminal).

3.  Verify that there is continuity between the FIP connector terminal D and TCV body.

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4.  If not as specified, send TCV to a distributor for replacement. If the TCV is okay, but PCM terminal voltage is out of specification, inspect as follows and repair or replace as necessary.

Open circuit

•  Power circuit (FIP connector terminal D and PCM connector terminal Q)

Short circuit

•  FIP connector terminal D and PCM connector terminal Q to ground

5.  Repair or replace faulty areas.

6.  Reconnect the FIP connector.