Yamaha FJR1300A(D) Service Manual page 613

The grip warmers are abnormally hot while the engine is idling.
1. Check that the temperature level of
the low grip warmer setting is set to
"1".
OK ↓
Replace the ECU. Refer to "REPLAC-
ING THE ECU (engine control unit)"
on page 8-174.
The grip warmers do not become very warm while the vehicle is traveling.
1. Check that the temperature level of
the high grip warmer setting is set
to "10".
OK ↓
2. Check that the engine trouble warn-
ing light is on and that fault code
No. 42 is displayed in the multi-
function meter right display.
OK ↓
Replace the ECU. Refer to "REPLAC-
ING THE ECU (engine control unit)"
on page 8-174.
The temperature levels of the grip warmer settings cannot be changed.
1. Check the left handlebar switch.
Refer to "CHECKING THE
SWITCHES" on page 8-169.
OK ↓
2. Check the wire harness between
the left handlebar switch and the
meter assembly.
OK ↓
Replace the meter assembly.
GRIP WARMER SYSTEM
NG →
Adjust the temperature levels of the grip
warmer settings.
NG →
Adjust the temperature levels of the grip
warmer settings.
NG →
Perform the troubleshooting for fault code
No. 42. Refer to "TROUBLESHOOTING
DETAILS" on page 8-40.
NG →
Replace the left handlebar switch.
NG →
Properly connect or replace the wiring har-
ness.
8-164