Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSEAGLE1993SUMMIT WAGON DL, 1.8 CREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODESDIAGNOSTIC TESTSCODE 14: THROTTLE POSITION SENSOR
1993 Eagle Summit Wagon DL, 1.8 C
Code 14: Throttle Position Sensor
1993 Eagle Summit Wagon DL, 1.8 CSECTION Code 14: Throttle Position Sensor
NOTE:
For component terminal identification, see TERMINAL IDENTIFICATION
. For wiring diagrams, see WIRING DIAGRAMS
article in this section.
- If using scan tester, go to step 3. Disconnect Throttle Position Sensor (TPS) connector. Using DVOM, check resistance between TPS terminals No. 1 and 4. If resistance is not 3500-6500 ohms, replace TPS. If resistance is as specified, go to next step
- Check resistance between specified TPS terminals. See TPS TERMINAL ID
table. While monitoring DVOM, slowly open throttle from idle to fully open position. If resistance does not change smoothly, replace TPS. If resistance changes smoothly, go to step 4.TPS TERMINAL ID
Application Terminals No. All Models 1 & 3 - Turn ignition switch to ON position. Using scan tester, read Throttle Position Sensor (TPS) voltage. With throttle at idle, voltage should read .3-1.0 volt. Voltage should increase while slowly opening throttle. At wide open throttle, voltage should read 4.5-5.5 volts. If voltage is not as specified, replace TPS. If voltage is as specified, go to next step.
- On all models, disconnect TPS connector. Using DVOM, check continuity between chassis ground and specified TPS connector terminal. See TPS CONNECTOR GROUND CIRCUIT ID
table. If continuity does not exist, repair wiring harness as necessary. If continuity exists, go to next step.TPS CONNECTOR GROUND CIRCUIT ID
Application Terminal No. All Models 1 - Disconnect TPS connector and ECM connector. Check for continuity between specified TPS connector terminal and ECM connector terminal. See TPS TO ECM WIRING HARNESS TERMINAL ID
table. If continuity does not exist, repair wiring harness as necessary. If continuity exists, go to next step.TPS TO ECM WIRING HARNESS TERMINAL ID
Application TPS Terminal No. ECM Terminal No. All Models 3 64 - Check voltage between chassis ground and specified TPS connector terminal. See TPS VOLTAGE CIRCUIT ID
table. If voltage is not 4.8-5.2 volts, replace ECM. If voltage is as specified, condition required to set fault is not present at this time. Test is complete. Intermittent problem may exist. TESTS W/O CODES
article in this section.TPS VOLTAGE CIRCUIT ID
Application TPS Terminal No. All Models 4
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.