Without Scan Tool
Check the DTC using diagnosis check wire1. Turn the ignition switch to ON.
2. Using SST, connect terminals Tc and CG of DLC3.
SST 09843-18040
3. Read the DTC on the CRUISE main indicator light.
HINT: If the DTC is not output, inspect the diagnosis circuit.
As an example, the blinking patterns for codes are shown in the illustration; normal, 11 and 21.