Inspection Procedure

Check voltage between terminals PI and GND of cruise control ECU connector.

PREPARATION:

Tun ignition switch ON.

CHECK:

Measure voltage between terminals PI and GND of cruise control ECU connector when main switch is ON and OFF.

OK:

TERMINALS VOLTAGE REFERENCE

Switch position	Voltage
OFF	10 - 16 V
ON	Below 1.2 V

Fig 1: Checking Voltage Between Terminals PI And GND Of Cruise Control ECU Connector

OK: Proceed to next circuit inspection shown in problem symptom table (See PROBLEM SYMPTOMS TABLE ).
NG: Go to next step.

Check combination meter (See BODY ELECTRICAL SYSTEM/TROUBLESHOOTING ).
1. NG: Replace combination meter.
2. OK: Check and replace cruise control ECU (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS ).