BE–178 BODY ELECTRICAL SYSTEM – CRUISE CONTROL SYSTEM WIRING DIAGRAM Cruise Control ECU ⊕ 12 V Telltail Light RH 5 L-R OD & TRIP METER CIRCUIT 6 P 5 IF2 << P SPD 20 2 II1 L-R 3 Vehicle Speed Sensor NC9786 INSPECTION PROCEDURE 1 Input signal check. Vehicle speed | Indicator light blinking pattern Above 40 km/h (25 mph) ON Blinks OFF 0.25 sec 0.25 sec Below 40 km/h (25 mph) ON Stays ON OFF BE4006 C (1) See input signal check on page BE–169. (2) Check indicator light operation when driving with vehicle speed above 40 km/h (25 mph), and with vehicle speed below 40 km/h (25 mph). OK Vehicle speed above 40 km/h (25 mph): Indicator light blinks Vehicle speed below 40 km/h (25 mph): Indicator light stays on NG OK Proceed to next circuit inspection shown on matrix chart (See page BE–170). 2 Check speedometer circuit (See combination meter troubleshooting on page BE–41). OK NG Repair or replace speed sensor, harness, connector or combination meter assembly. Check harness and connector for loose connection. If connection is normal, check and replace ECU.