Without Scan Tool
CHECK DTC (USING SST CHECK WIRE)a. Using SST, connect terminals TC and CG of the DLC3.
b. Turn the ignition switch ON.
c. Read and record DTCs from the CRUISE main indicator lamp on the combination meter. Refer to the illustration for the blinking patterns of the normal code and DTC 52.
HINT: If the CRUISE main indicator lamp does not output a DTC or normal code blinking pattern, inspect the following circuit.
Relevant Circuit
TC and CG terminal circuit
CRUISE main indicator lamp circuit