FI SYSTEM DIAGNOSIS 4-55
4) Check for proper terminal connection to the GP switch cou-
pler.
5) If connections are OK, turn the ignition switch ON.
6) Measure the input voltage between the P wire and ground.
7) If OK, measure the input voltage between the P wire and B/W
wire.
09900-25008: Multi circuit tester set
Tester knob indication: Voltage (
)
GP switch input voltage:
4.5 – 5.5 V
(
+
terminal: P –
-
terminal: Ground)
(
+
terminal: P –
-
terminal: B/W)
Is check result OK?
Step 2
GP switch circuit check
1) Turn the ignition switch OFF.
2) Remove the seat. (
8-5)
3) Disconnect the ECM couplers
1
.
4) Check for proper terminal connection to the ECM couplers.
5) If connections are OK, check the following points.
• Resistance
09900-25008: Multi circuit tester set
09900-25009: Needle-point probe set
Tester knob indication: Resistance (
)
– Between P wire and B/W wire of GP switch coupler and
ECM coupler: less than 1
– Between P or B/W wire and ground: infinity
YES
Go to Step 3.
NO
Go to Step 2.
1
2
2
2
