7951597

1.

Many malfunctions in the electrical system are caused by poor harness and terminal condition. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.

Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.

3.

Has a problem been found?

	▶ Repair if necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Signal Circuit Inspection" procedure.

1.

Ignition "OFF"

2.

Disconnect R/R initiator connector.

3.

Ignition "ON", Engine "OFF".

4.

Measure voltage between LIN terminal of R/R initiator harness connector and chassis ground.

Specification : Approx. 10V

5.

Is the voltage measured within specifications?

▶ Go to "Ground Circuit Inspection" procedure.

▶ Repair open in Signal circuit between R/R initiator harness connector chassis ground and then go to "Verification of Vehicle Repair" procedure.

▶ Repair short to ground in Signal circuit between R/R initiator harness connector chassis ground and then go to "Verification of Vehicle Repair" procedure.

1.

Ignition "OFF"

2.

Disconnect R/R initiator connector and TPMS receiver connector.

3.

Measure resistance between ground terminal of R/R initiator harness connector and ground terminal of TPMS ECU harness.

Specification : Approx. 1Ω below

4.

Is the resistance measured within specifications?

	▶ Go to "Power Circuit Inspection" procedure.
	▶ Repair an open circuit in ground harness and then go to "Verification of Vehicle Repair" procedure.

1.

Ignition "OFF"

2.

Disconnect R/R initiator connector and TPMS receiver connector.

3.

Measure resistance between Power terminal of R/R initiator harness connector and chassis ground.

Specification : Infinity (∞)

4.

Is the resistance measured within specifications?

	▶ Go to Next procedure.
	▶ Repair short to ground in Power circuit between R/R initiator harness connector chassis ground and then go to "Verification of Vehicle Repair" procedure.

5.

Ignition "OFF"

6.

Connect R/R connector and TPMS receiver connector.

7.

Measure voltage between Power terminal of TPMS ECU harness connector and chassis ground.

8.

Drive at the speed of above 20 Km/h.

(※ With IG KEY OFF, keep the vehicle for about 20 minutes and then start it. If it drives above 20 Km/h, its battery voltage comes out for approx. 3 minutes.)

Specification : Infinity (∞)

9.

Is the voltage measured within specifications?

▶ Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ It can be an intermittent fault or have been completed. After clearing DTCs, try to drive it to check if the same DTC can be reduced.

▶ Check if a battery voltage is inputted into TPMS ECU and then if not, repair it and then go to "Verification of Vehicle Repair" procedure.

▶ If there is a DTC related to vehicle speed signal, its power voltage can not be produced. So, if it can't be measured, make a repair related to vehicle speed signal and then go to "Verification of Vehicle Repair" procedure.