Pinpoint Test G556798P2

Pinpoint Test G556798p2 : Change-over Valve (COV) Control Circuit

G556798t3 : CHECK THE COV CONTROL CIRCUIT FOR SHORT CIRCUIT TO GROUND
1. Set ignition status to OFF.
2. Disconnect the DMTL electrical connector, CV011.
3. Measure the resistance between:

DMTL connector CV011, harness side Battery
Pin 03 Negative terminal

- Is the resistance less than 10,000 ohms?

->YES
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear the DTC, test the system for normal operation.

->NO
GO to Pinpoint Test G556798t4.

G556798t4 : CHECK THE COV CONTROL CIRCUIT FOR SHORT CIRCUIT TO POWER
1. Measure the resistance between:

DMTL connector CV011, harness side Battery
Pin 03 Positive terminal

- Is the resistance less than 10,000 ohms?

->YES
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear the DTC, test the system for normal operation.

->NO
GO to Pinpoint Test G556798t5.

G556798t5 : CHECK THE COV CONTROL CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the ECM electrical connector, FL072.
2. Measure the resistance between:

DMTL connector CV011, harness side ECM connector FL072, harness side
Pin 03 Pin 48

- Is the resistance greater than 5 ohms?

->YES
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear the DTC, test the system for normal operation.

->NO
INSTALL a new DMTL assembly. If the DTC is repeated, refer to the new ECM installation notes at the top of the DTC Index.