TPMS Symptom Troubleshooting Index

Symptom	Diagnostic procedure	Also check for
HDS does not communicate with the TPMS control unit or the vehicle	Troubleshoot the DLC circuit - Refer to: Network Communications Symptom Troubleshooting - F-CAN Lost Communication (CAN BUS with Connection to CAN Gateway) or Network Communications Symptom Troubleshooting - F-CAN Lost Communication (CAN BUS without Connection to CAN Gateway) or Network Communications Symptom Troubleshooting - HDS does not communicate with the vehicle or Network Communications Symptom Troubleshooting - F-CAN BUS-OFF (CAN BUS without Connection to CAN Gateway) or Network Communications Symptom Troubleshooting - B-CAN Lost Communication .	Faulty data link cable
Low tire pressure/TPMS indicator does not come on	Symptom Troubleshooting .
Low tire pressure/TPMS indicator does not go off, and no DTCs are stored	NOTE: If any of the CAN communication failure DTC is indicated in other system, troubleshooting the DTC first. Check for open wire or shorted wire in the F-CAN circuit; - Between the gauge control module and the CAN gateway (IF-CAN_H, IF-CAN_L) - Between the body control module and the CAN gateway (BF-CAN_H, BF-CAN_L) Check the body control module power circuit (+B_BACK_UP, +B_SMART) Check the body control module ground circuit (GND) Do the gauge control module self-diagnostic function .	Refer to the followings about the indicator operating condition; How to troubleshoot the TPMS Refer to the followings about the circuit troubleshooting; Gauge control module connector for inputs and outputs Body control module connector for inputs and outputs TPMS circuit diagram Fuse to components index Ground to components index

Symptom

Diagnostic procedure

Also check for

HDS does not communicate with the TPMS control unit or the vehicle

Troubleshoot the DLC circuit - Refer to: Network Communications Symptom Troubleshooting - F-CAN Lost Communication (CAN BUS with Connection to CAN Gateway) or Network Communications Symptom Troubleshooting - F-CAN Lost Communication (CAN BUS without Connection to CAN Gateway) or Network Communications Symptom Troubleshooting - HDS does not communicate with the vehicle or Network Communications Symptom Troubleshooting - F-CAN BUS-OFF (CAN BUS without Connection to CAN Gateway) or Network Communications Symptom Troubleshooting - B-CAN Lost Communication .

Faulty data link cable

Low tire pressure/TPMS indicator does not come on

Symptom Troubleshooting .

Low tire pressure/TPMS indicator does not go off, and no DTCs are stored

NOTE: If any of the CAN communication failure DTC is indicated in other system, troubleshooting the DTC first.

Check for open wire or shorted wire in the F-CAN circuit;
- -
  Between the gauge control module and the CAN gateway (IF-CAN_H, IF-CAN_L)
- -
  Between the body control module and the CAN gateway (BF-CAN_H, BF-CAN_L)
Check the body control module power circuit (+B_BACK_UP, +B_SMART)
Check the body control module ground circuit (GND)
Do the gauge control module self-diagnostic function .

Refer to the followings about the indicator operating condition;

How to troubleshoot the TPMS

Refer to the followings about the circuit troubleshooting;

Gauge control module connector for inputs and outputs
Body control module connector for inputs and outputs
TPMS circuit diagram
Fuse to components index
Ground to components index