Inspection Procedure
WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT CRUISE CONTROL MAIN SWITCH
- Disconnect the cruise control main switch connector.
- Measure resistance between terminal 1 and 3 of the cruise control switch connector when cruise control main switch is operated.
Standard:
SWITCH CONDITION RESISTANCESwitch condition Resistance (Ω) Neutral infinity (No continuity) +/RES 210 to 270 -/SET 560 to 700 CANCEL 1,380 to 1,700 - Check continuity between terminals 1 and 3 of cruise control main switch connector when main switch button is held on and off.
Standard:
TESTER CONNECTION SPECIFICATIONSwitch condition Tester connection Specification OFF 1 - 3 No continuity ON 1 - 3 Continuity Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG: REPLACE CRUISE CONTROL MAIN SWITCH
- OK: Go to Next Step
- INSPECT STEERING PAD SWITCH LH
- Check for open and short circuit in harness and connector between cruise control main switch side terminal 1 and ECM side terminal 4. (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
- Check for open and short circuit in harness and connector between cruise control main switch side terminal 3 and ECM side terminal 5. (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
- NG: REPAIR OR REPLACE STEERING PAD SWITCH LH
- OK: Go to Next Step
- INSPECT ECM
- Remove the ECM with connector.
- Ignition switch ON.
- Measure voltage between terminal CCS of ECM and body ground, when cruise control main switch is operated.
Standard:
SWITCH POSITION VOLTAGESwitch position Voltage Neutral 10 to 14 V CANCEL 6.6 to 10.1 V -/SET 4.5 to 7.1 V +/RES 2.3 to 4 V Main switch ON Below 1 V - NG: REPLACE ECM (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
- OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE