LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 1997 >> Corvette Standard >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Suspension - Electronic Real Time Damping >> Testing & Diagnosis >> DTC C1780: Loss Of Steering Position Signal

DTC C1780: Loss Of Steering Position Signal

  1. Perform RTD diagnostic system check. See RTD DIAGNOSTIC SYSTEM CHECK . After performing RTD diagnostic system check, go to next step.
  2. Using scan tool, check for any stored ABS/TCS DTCs. If any ABS/TCS DTCs are set, go to ANTI-LOCK BRAKE SYSTEM article in BRAKES section. If no ABS/TCS DTCs are set, go to next step.
  3. Using scan tool, monitor steering position sensor input while turning steering wheel. If voltage changes while steering wheel is turned, go to step 5), If voltage does not change when steering wheel is turned, go to next step.
  4. Check for open or short (to voltage or ground) in Light Blue wire (circuit No. 914) between RTD control module connector C2, terminal C7 and Electronic Brake/Traction Control Module (EBTCM). Repair as necessary. See WIRING DIAGRAM . When repair is complete, go to step 8). If Light Blue wire is okay, go to next step.
  5. Check steering position sensor signal circuit (circuit No. 914) for intermittent operation. See NOTES ON INTERMITTENTS  under SELF-DIAGNOSTICS. After repairs, go to step 8). If no problem was found, go to next step.
  6. Turn ignition off. Reinstall/reconnect all components/connectors. Using scan tool, clear all DTCs. After 5 seconds, check if DTC C1780 resets. If DTC C1780 resets, go to next step. If DTC C1780 does not reset, system is functioning properly.
  7. Replace RTD control module. See RTD CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to next step.
  8. Turn ignition off. Reinstall/reconnect all components/connectors. Using scan tool, clear all DTCs and perform RTD DIAGNOSTIC SYSTEM CHECK .
scientia non olet · About LEMON Manuals