Component Tests and General Diagnostics
Inspection1. Disconnect the PCM connector.
2. Connect the SST (104 pin breakout box) between vehicle harness and PCM.
3. Measure the voltage at each terminal with a voltmeter.
4. If any PCM terminal voltage is incorrect, check the related input or output devices and wiring. if no problem is found, replace the PCM.
NOTE: All values shown may vary + 20% depending on operating conditions and other factors. RPM values are axle and tire dependent.
PID Data Monitor
NOTE: You can also inspect any PID values through scan tool or SST New Generation Star (NGS) tester.