C31" (P0705) Gp Switch Circuit Malfunction - Suzuki VZ800 Service Manual

5-64 FI SYSTEM

"C31" (P0705) GP SWITCH CIRCUIT MALFUNCTION

DETECTED CONDITION
No Gear Position switch voltage.
Switch voltage is not within the following range.
Switch voltage > 0.6 V
ECM
GP
INSPECTION
Step 1
1) Remove the secondary gear case cover.
(2-16)
2) Turn the ignition switch OFF.
3) Check the GP switch coupler for loose or poor contacts.
If OK, then measure the GP switch voltage.
4) Support the motorcycle with a jack.
5) Fold the side-stand to up position.
6) Make sure the engine stop switch is in the "RUN" position.
7) Insert the needle pointed probe to the lead wire coupler.
8) Turn the ignition switch ON.
9) Measure the voltage at the wire side coupler between Pink
wire A and B/W wire B, when shifting the gearshift lever from
1st to Top.
 GP switch voltage: 0.6 V and more
 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
 Tester knob indication: Voltage ()
To engine stop switch
BI
GP switch
BI
N
P P
5
4
B/W B/W
3
(+ P A – - B/W B)
POSSIBLE CAUSE
• Gear Position switch circuit open or short
• Gear Position switch malfunction
• ECM malfunction
Side-stand relay
1
Neutral indicator
light
2
Side-stand switch
1
1
Ignition
switch
V