Nissan,MICRA,K12,DTC,P1065,ECM,Power,Supply

Nissan MICRA K12 DTC P1065 ECM Power Supply

Even when the ignition is off there is a continuous supply of voltage to the ECM for its memory function and other information on regarding air/fuel ratio etc.

DTC Confirmation Procedure

Before starting the test, switch off the ignition and wait for 10 seconds.

With Consult II. With GST

Switch on ignition and wait for 1 second Perform

Click on Data Monitor mode the

*Start and idle engine for 1 second same

Switch off ignition, wait for 10 seconds, switch on steps

Repeat step* 4 times as

DTC observed > Diagnostic Procedure with Consult II

Diagnostic Procedure

Input or output voltage should not be measured by using the ECM ground terminals.

1. Check: ECM power supply

Switch off ignition

Disconnect the harness connector to the ECM

Between the ground and ECM terminal 121 check the voltage (Battery)

OK: proceed to step 3 Not OK: proceed to step 2

2. Find: The malfunctions check the following:

Fuse 20A

Harness connector E14 of IPDM/ER

For open/short in harness between ECM & IPDM E/R

Repair / replace – harness / connectors

3. Check: for intermittent incident

Refer to Trouble Diagnosis for Intermittent Incident

OK: proceed to 4 Not OK: repair/replace harness/connectors

4. Perform: procedure for DTC confirmation

With CONSULT-II With GST

Switch on ignition Switch on ignition

Click on Self Diagnosis Results mode Click on Mode 4

Put your finger on Erase Put your finger on Erase

Proceed> DTC Confirmation Procedure Proceed> DTC Confirmation Procedure

1^st trip DTC P1O65 is observed? 1^st trip DTC P1O65 is observed?

If not > end of inspection If not > end of inspection

If so > Replace the ECM If so > Replace the ECM