Test Dr-10A - Testing Detonation Sensor (Turbo) (Code 31)

WARNING: This page is about a different car, the 1994 Plymouth Laser and 1994 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Using DRB, erase faults. Disconnect detonation sensor 2-pin connector. Detonation sensor is located on side of cylinder block. Measure resistance between White wire of detonation sensor 2-pin connector and ground. If resistance is more than 10 ohms, go to next step. If resistance is less than 10 ohms, repair short to ground in White wire between detonation sensor and ECU 24-pin connector. Perform TEST VER-2 .
Measure resistance of White wire between detonation sensor connector and ECU 24-pin connector terminal No. 9. If resistance is less than 10 ohms, go to next step. If resistance is more than 10 ohms, repair open circuit in White wire. Perform TEST VER-2.
Reconnect all connectors. Road test vehicle. Read faults. If Code 31 is not displayed, perform TEST DR-15A . If Code 31 is displayed, replace detonation sensor, and perform TEST VER-2.