3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "Power Circuit 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 "Power Circuit Inspection" procedure. |
Ignition Switch "OFF"
Disconnect battery (-) cable.
Refer to "Shop Manual" and disconnect the MAFS connector.
Measure the resistance between ground terminal of MAFS harness connector and chassis ground.
Specification : Approx. below 1Ω
Ignition switch "OFF"
Refer to "Shop Manual" and disconnect MAFS connector.
Ignition switch "ON"
Measure the voltage between temperature signal terminal of MAFS harness connector and chassis ground.(A)
Measure the voltage between temperature signal terminal and ground terminal of MAFS harness connector.(B)
Specification : Difference in (A) and (B) is less than 200 mV
Is the measured value within specification?
| ▶ Go to "Signal Circuit Inspection" procedure. |
| ▶ Inspect and repair open or short in circuit, and then go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Refer to "Shop Manual" and disconnect the MAFS connector.
Ignition Switch "ON"
Measure the voltage between intake Air Temperature
Is the measured value within specification?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Inspect and repair open or short in circuit, and then go to "Verification of Vehicle Repair" procedure. |
