Terminal & Connector Inspection
1.

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.

2.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

3.

Has a problem been found?

▶ Fault is intermittent caused by poor contact in the sensor's and/or TCM(PCM)'s connector or was repaired and TCM(PCM) memory was not cleared. Throughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage.Repair or replace as necessary and go to "Verification Vehicle Repair" procedure

▶ Go to Check for resistance of CAN communication.

CAN
■ Check resistance of CAN communication -1
1.

IG KEY OFF .

2.

Connect ECM, TCM, 4WD, VDC(ABS/TCS), EAS, SAS and CLUSTER connector.

3.

Measure resistance between #3 terminal and #11 terminal of "DLC".

Specification : Approx. 60 Ω

4.

Is measured resistance within specifications ?

▶ Check TCM connector as necessary and then go to "Verification of Vehicle Repair" procedure..

▶ Go to next procedure.

■ Check resistance of CAN communication -2
5.

IG KEY OFF .

6.

Disconnect ECM connector.

7.

Measure resistance between #3 terminal and #11 terminal of "DLC"..

Specification : Approx. 120 Ω

8.

Is measured resistance within specifications ?

▶ Go to next procedure.

▶ Check TCM connector as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Perform open/short test with CAN communication line of TCM and ECM.

▶ Perform resistance test with CAN communication line of ECM.

■ Check resistance of CAN communication -3
9.

IG KEY OFF .

10.

Disconnect CLUSTER connector.

11.

Measure resistance between #3 terminal and #11 terminal of "DLC".

Specification : Approx. 120 Ω

12.

Is measured resistance within specifications ?

▶ Go to next procedure.

▶ Check BMS connector as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Perform open/short test with CAN communication line of TCM and CLUSTER.

▶ Perform resistance test with CAN communication line of CLUSTER.

CAN
■ Check short of CAN communication line.
1.

IG KEY OFF .

2.

Connect TCM, ECM, CLUSTER connector.

3.

Measure voltage between TCM CAN HIGH and CAN LOW terminal.

Specification : Approx. 2.3V

4.

Is measured voltage within specifications ?

▶ Go to next procedure.

▶ Repair shorted circuit in CAN communication line as necessary and then go to "Verification of Vehicle Repair" procedure.

■ Check open in CAN communication line
5.

IG KEY OFF .

6.

Disconnector TCM, ECM and CLUSTER connector.

7.

Measure resistance between TCM CAN HIGH or CAN LOW and CLUSTER CAN HIGH or CAN LOW terminal.

Specification : Approx. 0Ω

8.

Is measured resistance within specifications ?

▶ Substitute with a known-good TCCM and check for proper operation. If the problem is corrected, replace TCCM as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Substitute with a known-good Mechatronics(E-module + Valvebody) and check for proper operation. If the problem is corrected, replace Mechatronics(E-module + Valvebody) as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Check open in TCCM circuit Rapiar as necessary and then go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика