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1.

Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various problems and damge of component.

2.

Perform checking procedure as follows.

(1)

Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.

(2)

Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking device and connecting condition between terminal and wiring.

note

Disconnect the pin which requires checking at male connector and insert it to the terminal at female connector for checking connecting condition. ( after checking, reconnect the pin at correct position. )

3.

Is the problem found?

YES

a.

Repair the trouble causing part and go to "Verification of Vehicle Repair".

NO

a.

Go to "Signal Circuit Inspection".

1.

IG KEY "OFF", ENGINE "OFF".

2.

Connect Oscilloscope to ECM connector(CDD-K) terminal 28 with ECM connector being connected.

3.

Check IG KEY "ON" signal waveform at IG KEY "ON".

1)

Specification : The signals indicate poor connection should not exist at IG KEY "ON" range.

4.

Does abnormal waveform generate at IG KEY "ON" range?

YES

a.

Repair IG KEY S/W and poor connection of E/R JUNCTION BOX 10A SNSR.2 FUSE and related circuit and go to "Verification of Vehicle Repair".

NO

a.

Go to "Verification of Vehicle Repair".

※ Repeat this process 2~3 times.