6.
Monitor the parameter of ＇Battery Positive Voltage＇on the screen.
Specification : ＇Battery Positive Voltage＇is less than 16 V
Fig 1) Current data (normal)
TPM Receiver
TPM Receiver is integrated with the TPM module installed in the back side of center console. The operating battery of TPM module is supplied from the vehicle battery.
A HIGH-LINE TPMS Receiver performs the same functions as the LOW-LINE RX, but in addition is equipped to control three Low Frequency Initiator (LFI) devices, fitted to the vehicle near each of the three tire locations. When the ignition circuit is first energized, the TPMS Receiver unit activates each of the LFI devices one at a time. The coded electromagnetic field from the LFI device causes a nearby WE to temporarily suspend normal processing and broadcast an RF message. The message content is the same as those normally generated by the WE sensor, with the exception that the operating state information within the broadcast reflects that the WE has detected the coded electromagnetic field from a nearby LFI device.
Upon reception of the broadcast from the WE sensor, the TPMS receiver is able to associate the unique WE ID code with the wheel＇s position on the vehicle, due to the known location of the LFI units. This “auto-location” process takes place each time the vehicle＇s ignition circuit is energized and vhhicle speed is more than 25km/h after parked for 19min, so that changes in wheel position will be noted. The TPMS Warning Algorithm continues to evaluate the pressure and temperature of each tire, and is responsible for making the decision to alert the driver to a potentially dangerous tire inflation condition via a visible ‘TREAD＇ indicator. It also indicate the appropriate tire position via a ‘FR＇ (Front Right), ‘FL＇ (Front Left), ‘RR＇ (Rear Right), or ‘RL＇ (Rear Left) indicator.
This DTC indicates that the Vehicle/receiver battery level is High.
Item | Detecting Condition | Possible cause |
DTC strategy | ● Check vehicle battery voltage | ● Faulty charging system ● Vehicle battery high ● Faulty TPMS Receiver |
Enable conditions | ● IGN ON | |
Threshold value | ● Battery voltage ＞ 16 V ● Consecutive over 5 sec. | |
Mil On condition | ● Active DTC is set |
Start engine and turn headlight and rear defroster on.
Set up ＇GDS＇ with ＇GDS TPMS＇.
Select the vehicle model and "TPMS" system.
Select "CURRENT DATA" function.
Maintaining ENG. RPM at 2,500RPM(idle) over 2 minutes.
Monitor the parameter of ＇Battery Positive Voltage＇on the screen.
Specification : ＇Battery Positive Voltage＇is less than 16 V
Fig 1) Current data (normal)
Is parameter within specifications?
▶ Fault is intermittent. It has been repaired and TPMS receiver module memory is not cleared yet.
▶ Go to "Verification of vehicle Repair" procedure.
▶ Go to "Inspection/Repair" procedure
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.
Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
Has a problem been found?
▶ Repair if necessary and then go to "Verification of Vehicle Repair" procedure.
▶ Go to "Charging System Inspection" procedure.
Engine "ON"
Headight and rear defroster "ON".
Measure voltage between terminal (+) and (-) of battery maintaining ENG. RPM at 2,500RPM(idle) over 2 minutes.
Specification : less than 16V
Is the measured voltage within specifications?
▶ Substitute with a known-good TPMS receiver and check for proper operation.
▶ If the problem is corrected, replace TPMS receiver and then go to "Verification of Vehicle Repair" procedure.
▶ Check for fault in charging system and thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
▶ Repair or replace if necessary and then go to "Verification of Vehicle Repair" procedure.
After a repair, it is essential to verify that the fault has been corrected.
Connect TPMS exciter or scantool and select "Diagnostic Trouble Codes(DTCs)" mode
Using a TPMS exciter or scantool, Clear DTC.
Operate the vehicle within DTC Enable conditions in General information.
Are any DTCs present ?
▶ Go to the applicable troubleshooting procedure.
▶ System performing to specification at this time.
