TROUBLESHOOTING

-	the lamp check should occur and then all lamps / LED's should turn off.

-	If the lamp test does not occur :

• Check connectors and fuse/harnessing - open / short circuits. • Check DTC's. • If diagnostics cannot be entered, replace the receiver with a known good one (follow configuration & learning procedure).

-	Information to ascertain (TREAD Lamp) :

• Was puncture repair fluid used (it should not be)? - This can cause the sensor pressure port to block and incorrect warning to occur. • What temperature were tires last inflated at? At what temperature did warnings occur? - Pressure change is approx. 1.5psi / 10 C increase. • Have the tires been checked / inflated since the lamp first came on?

-	If the TREAD Lamp is on :

• Check for short circuits. • Enter Diagnostics and read TREAD Warnings Local Identifier Data. • Check to see if warning type is under inflation or leak. • If the warning is for under inflation, then: a. Re-inflate the wheel with the matching sensor ID to it's desired Placard pressure. b. Check to make sure that the TREAD lamp turns off (this may take up to 1 minutes if the tire is not rapidly re-inflated). • a. If the warning is for a leak, then: b. Fix any puncture and re-inflate the tire to the desired Placard pressure. Wait up to 1 minutes and make sure that the TREAD lamp turns off and the lamp does not turn on again. c. If lamp comes on again: d. Re-check pressure for signs of a puncture and Re-Check TREAD Warnings Local Identifier Data.

-	If the Placard pressure is OK and the TREAD lamp still does not turn off :

• Turn wheel a quarter turn and again wait 1 minutes (the sensor may be in an RF null). • If the lamp still does not turn off : check for loose receiver wiring and replace the receiver with a known good one if necessary (follow configuration & learning procedure). - If the problem still exists, replace sensor. - Ensure that all tires are inflated to their correct Placard pressures. - Clear TREAD warnings. - Test drive the vehicle and ensure that the TREAD lamp does not come back on.

-	Information to ascertain (DTC Lamp) :

• At what temperature did the DTC occur? Under certain conditions (approx.-40 C/F), a RF channel missing / hardware failure DTC may occur. This is due to the battery behavior.

-	DTC's should be retrieved by using Hi-Scan diagnostic tool.

-	The fault should then be diagnosed and rectified.

-	DTC's should then be cleared.

DTC	Trouble description	Diagnostic Lamp
C1121	Front Left WE Sensor Battery Voltage Low	○
C1122	Front Right WE Sensor Battery Voltage Low	○
C1123	Rear Left WE Sensor Battery Voltage Low	○
C1124	Rear Right WE Sensor Battery Voltage Low	○
C1126	Vehicle Battery Voltage Low	○
C1127	Vehicle Battery Voltage High	○
C1212	Speed Sensor Fault	○
C1301	Unmonitored Tire Installed	○
C1312	Front Left WE Sensor Not Transmitting	○
C1313	Front Right WE Sensor Not Transmitting	○
C1314	Rear Left WE Sensor Not Transmitting	○
C1315	Rear Right WE Sensor Not Transmitting	○
C1317	Front Left WE Sensor Wrong Type Installed	○
C1318	Front Right WE Sensor Wrong Type Installed	○
C1319	Rear Left WE Sensor Wrong Type Installed	○
C1320	Rear Right WE Sensor Wrong Type Installed	○
C1322	Front Left WE Sensor Over-Temperature Thermal Shutdown	-
C1323	Front Right WE Sensor Over-Temperature Thermal Shutdown	-
C1324	Rear Left WE Sensor Over-Temperature Thermal Shutdown	-
C1325	Rear Right WE Sensor Over-Temperature Thermal Shutdown	-
C1332	Front Left WE Sensor Failure	○
C1333	Front Right WE Sensor Failure	○
C1334	Rear Left WE Sensor Failure	○
C1335	Rear Right WE Sensor Failure	○
C1337	Front Left LFI Fail Pulse Detected	○
C1338	Front Right LFI Fail Pulse Detected	○
C1339	Rear Left LFI Fail Pulse Detected	○
C1340	Rear Right LFI Fail Pulse Detected	○
C1341	Front Left WE Sensor LFI Channel Failure	○
C1342	Front Right WE Sensor LFI Channel Failure	○
C1343	Rear Left WE Sensor LFI Channel Failure	○
C1344	Rear Right WE Sensor LFI Channel Failure	○
C1351	Front Left LFI Open/Short Failure	○
C1352	Front Right LFI Open/Short Failure	○
C1353	Rear Left LFI Open/Short Failure	○
C1354	Rear Right LFI Open/Short Failure	○
C1355	Multi Sensor Id's Received	-
C1660	Not Implemented	-
C1661	EEPROM Checksum Failure	○
C1668	Watchdog Reset	-
C2510	Tread Lamp Circuit Failure	○
C2511	TPMS Lamp Circuit Failure	○
C2512	Front Left Lamp Circuit Failure	○
C2513	Front Right Lamp Circuit Failure	○
C2514	Rear Left Lamp Circuit Failure	○
C2515	Rear Right Lamp Circuit Failure	○