Test 24A - Testing Single Board Engine Controller (SBEC) For No Response
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .
- Disconnect SBEC connector. Check connector condition and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform VERIFICATION TEST .
- If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire. Perform VERIFICATION TEST .
- If resistance is less than 5 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform VERIFICATION TEST . If resistance is less than 5 ohms, replace SBEC. Perform VERIFICATION TEST .