I had a test done and code P0354 came up
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2003 Toyota 4Runner Question: Check engine light + vsc lights
Answer #1dandd July 31, 2009, 13:40Master
The dtc P0354 fault has to do with the "c" coil having a primary circuit malfunction. You have an A, B and C ignition coil on your truck. It would be best to do a resistance check of this coil's primary circuit. The VSC light or Vehicle Stability Control Light is most likely related to the coil problem which is also causing misfires I would imagine. Once the misfires are corrected, the VSC issue may be corrected as well. If not, then get back to me. Good Luck!