Temperature Meter Is Abnormal; Fuel Meter Is Abnormal - Sakai R2-4 Shop Manual

2-6-12. Temperature meter is abnormal

Reference Fig.: 2-6-2
Check point
1. Thermo Unit
2. Combination Meter
(Temperature meter)
3. Harness Connecting
Between Terminals

2-6-13. Fuel meter is abnormal

Reference Fig.: 2-6-2
Check point
1. Fuel Unit
2. Combination Meter
(Fuel meter)
3. Harness Connecting
Between Terminals
Check/Cause
• Disconnect harness and measure resistance of thermo
unit.
Standard resistance :
164.6 Ω (at unit temperature of 50°C)
26.44 Ω (at unit temperature of 103°C)
• If resistance is abnormal, thermo unit is faulty.
• when starter switch is ON, measure voltage between
combination meter terminal wires and ground terminal
wire.
• Battery (12 V) terminal wire No.73 inlet wire L and
ground terminal wire No.2 wire B
• Starter switch (ACC) terminal wire No.65 inlet wire Y
and ground terminal wire No.2 wire B
Standard voltage : 12 V or more
• If no abnormality is found, combination meter is faulty.
• Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
• If resistance is abnormal, harness is faulty.
Check/Cause
• Disconnect harness and measure resistance of fuel unit.
Standard resistance :
13.5 Ω (with float in "F")
80.0 Ω (with float in "E")
• If resistance is abnormal, fuel unit is faulty.
• when starter switch is ON, measure voltage between
combination meter terminal wires and ground terminal
wire.
• Battery (12 V) terminal wire No.73 inlet wire L and
ground terminal wire No.2 wire B
• Starter switch (ACC) terminal wire No.65 inlet wire Y
and ground terminal wire No.2 wire B
Standard voltage : 12 V or more
• If no abnormality is found, combination meter is faulty.
• Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
• If resistance is abnormal, harness is faulty.
TROUBLESHOOTING
Action
Replace thermo unit.
Replace combination
meter.
Repair or replace
harness.
Action
Replace fuel unit.
Replace combination
meter.
Repair or replace
harness.
10-055