LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Geo >> 1993 >> Tracker Base, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Charts >> Code 53, Ground Circuit, Circuit Open (CALIF. Only) >> Notes
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Code 53, Ground Circuit, Circuit Open (CALIF. Only): Notes

On California vehicles, an additional ground is supplied to ECM. ECM supplies 5 volts to Black/Green wire through a fixed resistor. ECM expects voltage signal to be low. Code 53 will set when a high voltage signal is indicated at ECM for 3 seconds.

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. Probing Black/Green wire cavity with test light to B+, checks for open in Black/Green wire, a poor ground connection or a faulty ECM.
scientia non olet · About LEMON Manuals