Terminal and Connector Inspection
1.

Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various problems and damage 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 separation, 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?

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

▶ Go to "Power Circuit Inspection".

Power Circuit Inspection
■ Check voltage and short to ground in power circuit
1.

IG key OFF.

2.

Disconnect RPS connector, APS connector and BPS connector.

3.

IG key ON.

4.

Check voltage between 'Supply (5V)' terminal of 'RAIL PRESSURE SENSOR' harness connector and chassis ground.

5.

Check voltage between 'APS 2 Supply' terminal of 'ACCELERATOR PEDAL POSITION SENSOR' harness connector and chassis ground.

6.

Check voltage between 'Supply' terminal of 'BOOST PRESSURE SENSOR' harness connector and chassis ground.

Specification : 4.8V ~ 5.2V

7.

IG key OFF.

8.

Disconnect ECM connector.

9.

Check resistance between 'Supply (5V)' terminal of 'RAIL PRESSURE SENSOR' and chasis ground.

10.

Check resistance between 'APS 2 Supply' terminal of 'ACCELERATOR PEDAL POSITION SENSOR' harness connector and chassis ground.

11.

Check resistance between 'Supply' terminal of 'BOOST PRESSURE SENSOR' harness connector and chassis ground.

Specification : Infinite (∞ Ω)

12.

Is the measured value within specification?

▶ Go to "Component Inspection" procedure.

▶ If abnormal voltage value is detected, repair open between 'Supply' terminal of abnormal sensor harness connector and 'Supply' terminal of ECM harness connector.

▶ If abnormal resistance value is detected, repair short to ground between 'Supply' terminal of abnormal sensor harness connector and 'Supply' terminal of ECM harness connector.

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