LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 1994 >> RX-7 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Retrieving Codes >> Accessing Trouble Codes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Accessing Trouble Codes

  1. Use Self-Diagnostic Checker (49 H018 9A1) and System Selector (49 B019 9A0) to retrieve trouble codes. Connect one lead of self-diagnostic checker to ground and the other to system selector. Connect system selector to data link connector. Connector is located on right inner fender panel in front of strut tower. See Figure . If system selector is not available, connect a jumper wire between data link connector terminals TEN and GND. See PIN VOLTAGE CHARTS article in the ENGINE PERFORMANCE section for terminal identification.
  2. With ignition on and engine stopped, observe Malfunction Indicator Light (MIL). Note trouble codes. Check TROUBLE CODE IDENTIFICATION chart for possible cause. If light remains on continuously, MIL circuit is grounded or ECU is defective.
scientia non olet · About LEMON Manuals