3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to next 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 next procedure. |
IG "OFF" and connect each channel scope to CAN-HIGH terminal and CAN-LOW terminal.
IG "ON"
Measure the voltage between Pin No. 3 (High) terminal of DLC harness connector and and chassis ground.
Measure the voltage between Pin No. 11 (Low) terminal of DLC harness connector and and chassis ground.
Specification : Monitoring CAN HIGH and LOW simultaneously is important in monitoring CAN communication waveform. When CAN HIGH signal rise to 3.5V and LOW signal drops to 1.5V - voltage difference between HIGH and LOW signal is 2V
Fig.1) Normal Waveform with ignition ON.
Is the measured resistance within specifications?
| ▶ Fault is intermittent caused by poor contact in the TPMS module’s connector or was repaired and TPMS module memory was not cleared. Thoroughly 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. ▶ Substitute with a known-good TPMS Module and check for proper operation. If the problem is corrected,replace TPMS Module and then go to "Verification of Vehicle Repair" ▶ Perfrom "Vehicle Name Writing", "Write VIN" and "Wheel Sensor ID Writing" in "Vehicle S/W Management" with GDS TPMS(Exciter) or drive vehicle with over 25 km/h for 10 minutes to complete auto-learning and auto-location, In case TPMS Module is replaced. |
| ▶ Check for open/short in harness. ▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure. |
Reference) VIN Writing
1. Connect GDS to Data Link Connector(DLC).
2. Ignition "ON"
3. Select "Write VIN" in "Vehicle S/W Management" with GDS.
4. Perform following procedure.
Fig.1~4) Write VIN1~4
Reference) Vehicle Name Writing
1. Connect GDS to Data Link Connector(DLC).
2. Ignition "ON"
3. Select "Vehicle Name Writing" in "Vehicle S/W Management" with GDS.
4. Perform following procedure.
Fig.1~4) Vehicle Name Writing
Reference) Register Sensor
1. Connect GDS to Data Link Connector(DLC).
2. Ignition "ON"
3. Select "Register Sensor" in "Vehicle S/W Management" with GDS.
4. Perform following procedure.
Fig.1~8) Register Sensor Procedures
