Description of On-Board Diagnostics
DIAGNOSIS SYSTEMWhen troubleshooting vehicles with the diagnosis system, only the difference from the usual troubleshooting procedure is connecting the hand-held tester to vehicle in order to read off various data output from the vehicle's multiplex tilt & telescopic ECU.
The multiplex tilt & telescopic ECU records the applicable DTCs when the computer detects a malfunction in the computer itself or its circuit.
To check the DTCs, connect the hand-held tester to DLC3 on the vehicle. The hand-held tester enables you to erase the DTCs, activate the several actuators, and check freeze frame data and various forms on steering data.