Without Scan Tool
OUTPUT DTC USING DIAGNOSIS CHECK WIRE
1. Turn the ignition switch ON.
2. Using SST, connect terminals Tc and E1 of DLC2.
SST 09843-18020
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; normal, 11 and 21 are shown in the illustration.