TPMS Indicator Does Not Come On, and No DTCs Are Stored
TPMS indicator does not come on, and no DTCs are stored1. Turn the ignition switch ON (II) and watch the TPMS indicator.
Does the TPMS indicator come on for at least 2 seconds?
YES - The system is OK at this time.
NO - Go to step 2.
2. Connect the HDS and select TPMS.
Does the HDS communicate with the TPMS control unit?
YES - Go to step 3.
NO - Go to step 5.
3. Command the system with the HDS to turn the TPMS indicator on.
Does the TPMS indicator come on?
YES - Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit and recheck.
NO - Go to step 4.
4. Turn the ignition switch OFF, then turn the ignition switch ON (II) again and watch the low pressure indicator.
Do the indicators come on for several seconds?
YES - Substitute a known-good gauge control module and recheck.
NO - Do the troubleshooting for the gauge control module. If necessary, substitute a known-good gauge control module and recheck.
5. Measure the voltage between the TPMS control unit connector A (14P) terminal No. 5 and body ground.
Is there battery voltage?
YES - Go to Step 6.
NO - There is an open between the under-dash f use/relay box fuse No. 21 (7-5 A) and the TPMS control unit. Check the No. 21 fuse (7.5 A). If the fuse is OK, repair the open in the YEL wire between the under-dash fuse/relay box and the TPMS control unit.
6. Measure the voltage between the TPMS control unit connector A (14P) terminal No. 3 and body ground.
Is there more than 0.1 V?
YES - Repair the open in the wire between terminal No. 3 at the TPMS control unit and body ground (G603).
NO - Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit and recheck.