Code P1300: Ignition Timing Adjustment Circuit Fault
NOTE:
For component terminal identification, see TERMINAL IDENTIFICATION
in this article. For appropriate WIRING DIAGRAMS, see WIRING DIAGRAMS
section.
Turn ignition on. Measure voltage between ignition timing adjustment terminal and ground. If voltage is 4.0-5.2 volts, replace PCM. If voltage is not 4.0-5.2 volts, check PCM connector and wiring harness between timing adjustment terminal and PCM. If connector and wiring is okay, replace PCM.