Element 2WD L4-2.4L (2003)
11. Measure the voltage between the No. 7 terminal of the heater control panel 30P connector and body ground.
Is there battery voltage?
YES - Check for loose wires or poor connections at the heater control panel 30P connector and at the A/C pressure switch 2P connector. If the
connections are good, substitute a known-good heater control panel, and recheck. If the symptom/indication goes away, replace the original heater
control panel.
NO - Repair open in the wire between the heater control panel and the A/C pressure switch.
12. Make sure the A/C switch is OFF.
13. Using the Backprobe Set, measure the voltage between the No. 9 terminal of under-dash fuse/relay box connector F (12P) and body ground with
the under-dash fuse/relay box connectors connected.
Is there 5 V or more?
YES - Repair open in the wire between the under-dash fuse/relay box and the A/C pressure switch.
NO - Refer to the multiplex control system.
NOTE: Check for multiplex codes in mode 1. Follow the troubleshooting for any codes found. If no codes are found, substitute a known-good
multiplex control unit and a PCM one at a time.
14. Check for proper A/C system pressure.
Is the pressure within specifications?
YES - Replace the A/C pressure switch.
NO - Repair the A/C pressure problem.
