3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure |
 | ▶ Go to "CAN High line Inspection" procedure |
Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure |
| ▶ Go to "CAN High line Inspection" procedure |
[ With ABS]
Ignition "OFF"
Disconnect PCM and ABS(or ESC or 4WD ECM) module connector
Measure resistance between terminals 7 of the PCM harness connectors and 11 of the ABS control module harness connector
Specification : Approx. 0Ω
Is resistance within the specification?
| ▶Go to "Check for short to ground in harness" procedure |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
[ Without ABS]
Measure resistance between terminals 7 of the PCM harness connectors and 2 of the vertical resistor
Specification : Approx. 0Ω
Is resistance within the specification?
| ▶Go to "Check for short to ground in harness" procedure |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Measure resistance between terminals 7 of the PCM harness connectors and chassis ground
Specification : Infinite
Is resistance within the specification?
| ▶Go to next step as below |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Ignition "ON" & Engine "OFF"
Measure voltage between terminals 7 of the PCM harness connectors and chassis ground
Specification : Approx. 0V
Is voltage within the specification?
| ▶ Go to "CAN Low Line Inspection" procedure |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
[ With ABS]
Ignition "OFF"
Disconnect PCM and ABS(or ESC or 4WD ECM) module connector
Measure resistance between terminals 6 of the PCM harness connectors and 10 of the ABS control module harness connector
Specification : Approx. 0Ω
Is resistance within the specification?
| ▶Go to "Check for short to ground in harness" procedure |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
[ Without ABS]
Measure resistance between terminals 6 of the PCM harness connectors and 1 of the vertical resistor
Specification : Approx. 0Ω
Is resistance within the specification?
| ▶Go to "Check for short to ground in harness" procedure |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Measure resistance between terminals 6 of the PCM harness connectors and chassis ground
Specification : Infinite
Is resistance within the specification?
| ▶Go to next step as below |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Ignition "ON" & Engine "OFF"
Measure voltage between terminals 6 of the PCM harness connectors and chassis ground
Specification : Approx. 0V
Is voltage within the specification?
| ▶ Using a scan tool, check PCM software version and upgrade as necessary. If version is the newest one, go to "Verification of Vehicle Repair" procedure |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
