Dtc 31-1 (System Voltage Low) - Honda MUV700 big red Service Manual

3. Shift Solenoid Valve B Input line Open Circuit
Inspection
Disconnect the PCM 33P black connector.
Check the Yellow/green wire for continuity
between the 33P black connector and 2P brown
connector.
TOOL:
Test probe. 2 pack
07ZAJ-ROJA '10
1 $ there continuity?
YES - GO TO STEP 4.
NO - Open circuit in the Yellow/green wire.
4. Shift Solenoid Valve B Ground line Open Circuit
Inspection
Check for continuity between the wire harness
side 2P brown connector ter minal and ground.
Is there continuity?
YES - Open circuit in the Green wire.
NO - GO TO STEP 5.
5. Failure Reproduction
Connect the shift solenoid valve B 2P brown con-
nector and PCM 33P black connector.
Erase the OTC (page 6-13).
Test-drive the veh icle and stop the engine.
Recheck the DTC with the HDS pocket tester.
Is DTe
16-2
indicated 7
YES - Replace the PCM with a new one and
recheck.
NO - Intermittent failure.
DTe 31-1 (SYSTEM VOLTAGE LOW)
• Before starting the troubleshooting. check that
the battery is in good condition and recheck the
DTC.
1. PCM System Voh:age Inspection
Turn the ignition switch to ON
(I).
Recheck the battery voltage in the Data list
menu of HDS pocket lester.
15 the voltage less than 9.3 V7
YES - GO TO STEP 2.
NO - Intermittent failure.
DRIVETRAIN SYSTEM
33P BLACK CONNECTOR
2P BROWN
CONNECTOR
~
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Y."OW/ 9 '~A
1 21
~:~/ 9 ,een
!Termi nal side of the wire harness)
SHIFT SOLENOID VALVE B 2P BROWN
CONNECTOR
(Terminal side of the wire harness)
14-23