3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "CAN Communication Line Inspection" procedure. |
Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
Has a problem been found?
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
| ▶ Go to "CAN Communication Line Inspection" procedure. |
Ignition switch "OFF"
Refer to "Shop Manual" and disconnect ECM connector.
Connect VMI to GDS and set up the Oscilloscope.(2 Channel):
Channel A (+) : CCP-CAN High terminal (ECM Harness Connector)
Channel A (-) : Ground
Channel B (+) : CCP-CAN Low terminal (ECM Harness connector)
Channel B (-) : Ground
Ignition switch "ON"
Specification :Refer to figure below
Fig.1) Normal CCP-CAN Signal Waveform
Is the measured value within specification?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Repair open in CCP-CAN circuit and then go to "Verification of Vehicle Repair" procedure. |
