Low Pressure and Tire Indicators Do Not Come On, and No DTCs Are Stored
Low pressure and tire indicators do not come on, and no DTCs are stored1. Turn the ignition switch ON (II), and watch the low pressure indicator and the tire indicators.
Do the low pressure and tire indicators come on for 2 seconds?
YES-Go to step 2.
NO-Go to step 4.
2. Check the pressure in all four tires.
Is the tire pressure 176 kPa (1.8 kgf/cm2, 26 psi) or less?
YES-Go to step 3.
NO-The system is OK at this time.
3. Connect the HDS, and read the pressure of the low tire(s). If no response is shown on the HDS, turn the ignition switch OFF, rotate the appropriate tire 1/4 turn, then turn the ignition switch ON (II), and try again.
Is the tire pressure shown on the HDS monitor within 40 kPa (0.4 kgf/cm2, 6 psi) of the actual tire pressure?
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-Replace the tire pressure sensor.
4. With the HDS command the system to turn on the low pressure and tire indicators.
Do the low pressure and tire indicators 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 5.
5. Turn the ignition switch OFF, then disconnect TPMS control unit connectors A (12P) and B (22P).
6. With a jumper wire, connect the appropriate terminal in connector B (22P) to body ground (see table). Then turn the ignition switch ON (II).
Does the appropriate 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 7.
7. Turn the ignition switch OFF, then remove the gauge assembly.
8. With a jumper wire, connect the appropriate terminal in gauge assembly connector A (30P) to body ground (see table). Then turn the ignition switch ON (II).
Does the appropriate indicator come on?
YES-Repair the open in the appropriate wire between the TPMS control unit and the gauge assembly.
NO-Do the troubleshooting for the gauge assembly.