Modern Tire Dealer

APR 2017

Magazine for the professional tire industry

Issue link: https://mtd.epubxp.com/i/812718

Contents of this Issue

Navigation

Page 63 of 77

MTD April 2017 TPMS Tire pressure monitor warning indicators When the TPMS detects a significantly under-inflated tire pressure, a "CHECK TIRE PRESSURE" message is displayed on the DIC and the low tire pressure indicator is displayed on the IPC. is DIC message will also set if a spare tire is in use. e DIC will display the "SERVICE TIRE MONITOR" message if one or more of the tire pressure sensors has malfunctioned or if all of the sensors have not been programmed successfully. If the warning indicators are still on, there is a problem in the TPMS. See the appropriate service information. W hen the tire pressure warning light illuminates and a warning message appears, immediately check air pressure of all tires and adjust to the specified pressure. Drive the vehicle above 25 mph (40 km/h) for a few minutes. If the warning indicators are still on, there is a problem in the TPMS. See the appropriate service information. Reset procedures NOTE: W hen the wheels have been rotated, or a tire pressure sensor or RCDLR has been replaced, retrain the tire pressure sensor. Tire pressure sensor relearn NOTE: Before proceeding with the following steps, ensure that no other sensor learn procedure is being performed simultaneously, or that tire pressures are not being adjusted on a TPMS-equipped vehicle within close proximity. NOTE: In the following procedure, a TPMS sensor acti- vation tool ( J-46079) may be used in place of increasing/ decreasing pressures to enable the sensor. To use, place the activator antenna against the tire sidewall close to the wheel rim at the valve stem location, then press and release the ACTIVATE buon. ere are three ways to enable the learn mode; using a scan tool, using the keyless entry transmiers (if equipped) or using the driver information center (DIC). Aer the learn mode has been enabled there are two different methods of activating the transmiers in the tires; utilizing the J-46079 tire pressure monitor diagnostic tool at each tire or increase/decrease tire pressure for eight to 10 seconds in each tire. If a scan tool has been used to enable the learn mode, the J-46079 must be used to activate the transmiers. Preferred scan tool learn mode IMPORTANT: In the event a particular sensor's information is displayed on the special tool upon activation but the horn does not chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked by another component. 1) Using a scan tool, initiate the TPMS learn mode. A double horn chirp will sound indicating the learn mode has been enabled. e le front turn signal will also be illuminated. 2) Activate the sensors by one of the following methods: Increase/decrease method: Starting with le front tire, increase or decrease the pressure for eight to 10 seconds, then wait for a horn chirp. e horn chirp may occur before the eight to 10 second pressure increase/decrease time period has been reached, or up to 30 seconds aer the eight to 10 second pressure increase/decrease time period has been reached. Sensor activation tool method: Starting with the le front tire, hold the scan tool against the tire wall aiming upward with the antenna. Press the activate buon and wait for a horn chirp. Aer the horn has chirped, the turn signal will illuminate indicating the next location to be learned. 3) Aer a horn chirp has sounded, repeat the procedure for the next three sensors in the following order: right front, right rear and le rear. 4) When the le rear sensor has been learned and a double horn chirp has sounded, the learn process is complete and the RCDLR exits the learn mode. 5) Turn ignition OFF, adjust all tires to the recommended pressures. Alternate keyless entry transmier or DIC learn enable method NOTE: If the learn mode cannot be enabled, the TPMS is not enabled in RCDLR . See the appropriate service information. 1) Ignition ON, initiate the TPMS learn mode using one of the following procedures: On vehicles equipped with keyless entry, simultaneously press the keyless entry transmiers lock and unlock buons until a double horn chirp sounds indicating the learn mode has been enabled. e le front turn signal will also be illuminated. On vehicles not equipped with keyless entry, press and release the driver information center (DIC) INFO buon until the TIRE LEARN message appears on the DIC display. Press and hold the SET/RESET 416 TIRE PRESSURE MONITOR SYSTEMS buon until a double horn chirp sounds indicating the learn mode has been enabled. e le front turn signal will also be illuminated. NOTE: If a horn chirp does not sound aer 35 seconds for any of the four sensors, turn the ignition switch to OFF position to exit the learn mode. Repeat procedure from Step 1. 2) Activate the sensors by one of the following methods: Increase/decrease method: Starting with the le front tire, increase or decrease the pressure for eight to 10 seconds, then wait for a horn chirp sounds. e horn chirp may occur before the eight to 10 second pressure increase/decrease time period has been reached, or up to 30 seconds aer the eight to 10 second pressure increase/decrease time period has been reached. Sensor activation tool method: Starting with the le front tire, hold the scan tool against the tire wall aiming upward with the antenna. Press the activate buon and wait for a horn chirp. Aer the horn has chirped, the turn signal will illuminate indicating the next location to be learned. 3) Aer a horn chirp has sounded, repeat the procedure for the next three sensors in the following order: right front, right rear and le rear. 4) Aer the le rear sensor has been learned, a double horn 62

Articles in this issue

Archives of this issue

view archives of Modern Tire Dealer - APR 2017