Page 277 - 2019 SHOP MANUAL CRF1000/A/D

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DUAL CLUTCH TRANSMISSION (DCT) (CRF1000D)
DCT TROUBLESHOOTING INFORMATION

GENERAL TROUBLESHOOTING
Intermittent Failure
The term "intermittent failure" means a system may have had a failure, but it checks OK now. If the shift indicator "–" does not come
on, check for poor contact or loose pins at all connectors related to the circuit that you are troubleshooting. If the shift indicator "–"
was on, but then went out, the original problem may be intermittent.
Opens and Shorts
"Opens" and "Shorts" are common electrical terms. An open is a break in a wire or at a connection. A short is an accidental
connection of a wire to ground or to another wire. In simple electronics, this usually means something will not work at all. With
PCMs this can sometimes mean something works, but not the way it’s supposed to.
If the shift indicator "–" has come on
Refer to DTC READOUT (page 13-8).
If the shift indicator "–" did not stay on
If the shift indicator "–" did not stay on, but there is a driveability problem, do the SYMPTOM TROUBLESHOOTING (page 13-3).

SYSTEM DESCRIPTION
SELF-DIAGNOSIS SYSTEM
The DCT system is equipped with the self-diagnostic system. When any abnormality occurs in the DCT system, the PCM have the
shift indicator blinking "–" and stores a DTC in its erasable memory for the relevant system failure.
FAIL-SAFE FUNCTION
The DCT system is provided with a fail-safe function to secure a minimum running capability even when there is trouble in the
system.
When the PCM detects a problem in the DCT system, the PCM stops the gearshift function, and hold the gear position. Also, the
shift indicator blinks "–" to indicate the DTC.
Shift indicator Check
When the ignition switch is turned ON with the engine stop switch to " ", the shift indicator will stay on for a few seconds, then go
off.
CURRENT DTC/STORED DTC
The DTC is indicated in two ways according to the failure status.
• If the PCM detects a current problem, the shift indicator "–" will come on and begin to blink when the sidestand is lowered. The
shift indicator "–" blink pattern will indicate the current DTC.
• If the PCM does not detect any current but has a problem stored in its memory, the shift indicator "–" will not light and blink. If it
is necessary to retrieve the past problem, readout the stored DTC by following the DTC readout procedure (page 13-8).
DTC (Diagnostic Trouble Code)
• The DTC is composed of a main code and a sub code and it is displayed as a hyphenated number when retrieved from the PCM
with the MCS.
The digits in front of the hyphen are the main code, they indicate the component of function failure.
The digits behind the hyphen are the sub code, they detail the specific symptom of the component or function failure.
For example, in the case of the shift spindle angle sensor:
– DTC 21 – 1 = (Shift spindle angle sensor voltage) – (lower than the specified value)
– DTC 21 – 2 = (Shift spindle angle sensor voltage) – (higher than the specified value)

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