service information

Engine/drive train electrical / PGM-FI system / System location/system diagram/service information

System location

PGM-FI system

System diagram

PGM-FI system

Service information

GENERAL

This section covers electrical system service of the PGM-FI system. For other service and fuel supply system, see Fuel System section.
The PGM-FI system is equipped with the self-diagnostic system. When performing the troubleshooting, read "PGM-FI Troubleshooting Information" carefully, and inspect and troubleshoot according to the DTC.
A faulty PGM-FI system is often related to poorly connected or corroded connectors. Check those connections before proceeding.
Use a digital tester for PGM-FI system inspection.
If the ECM is replaced, perform the Key Registration Procedures.
The following color codes are used throughout this section.

Bl = Black
Br = Brown
Bu = Blue
G = Green
Gr = Gray
Lb = Light Blue
Lg = Light Green
O = Orange
P = Pink
R = Red
V = Violet
W = White
Y = Yellow

ECM-to-COMBINATION METER TWO-WAY SERIAL COMMUNICATION

This motorcycle is equipped with the ECM-to-combination meter two-way serial communication system.

The ECM sends the following information to the combination meter.

The combination meter sends the vehicle speed signal information to the ECM.

These signals are communicated between the ECM and combination meter via one wire. This wire is called the serial communication (TXD/RXD) line.

PGM-FI system

COMBINATION METER INDICATION WHEN THE SERIAL COMMUNICATION LINE IS ABNORMAL

If there is any problem in the serial communication line, the combination meter shows following:

MIL [1] stays on
Tachometer [2] does not operate (though the engine is running)
Odometer, tripmeter or fuel mileage meter [3] indicates "-" (while the engine is running)
High coolant temperature indicator [4] and HISS indicator [5] do not come on

Serial communication line troubleshooting.

If there is any problem in the serial communication, the ECM stores the DTC 86-1.

PGM-FI system

See also: