Glow Plug Is Not Heated; Starter Motor Runs Even When F-R Lever Is Not At "N - Sakai R2-4 Shop Manual

2-3-4. Glow plug is not heated (Engine starting performance is bad in cold weather)
Reference Fig.: 2-3-1
Check point
1. Glow Heater
2. Glow Relay
3. Harness Connecting
Between Terminals
2-3-5. Starter motor runs even when F-R lever is not at "N" and parking brake is not
applied
Reference Fig.: 2-3-1
Check point
1. F-R Lever Switch
2. Parking Brake Switch
Check/Cause
• when starter switch is ON, measure voltage between
glow heater terminal inlet wire W and chassis ground.
Standard voltage : 12 V or more
• If voltage is OK and fuel pump does not operate, glow
heater is faulty.
(1) when starter switch is ON, measure voltage between
glow relay terminal g inlet wire GW and chassis ground.
Standard voltage : 12 V or more
(2) Measure voltage between glow relay terminal B inlet
wire R and chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is ON, measure voltage between
glow relay terminal G outlet wire W and chassis ground.
Standard voltage : 12 V or more
• If above items (1) and (2) are OK and item (3) is NG, glow
relay is faulty.
• Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
• If resistance is abnormal, harness is faulty.
Check/Cause
• when starter switch is OFF and F-R lever is "F" or "R",
check continuity between F-R lever switch terminal COM
wire wY and terminal NC wire Bw.
There is no continuity in normal condition.
• If there is continuity, F-R lever switch is faulty.
• when starter switch is OFF and parking brake switch is
released position, check continuity between parking brake
switch terminal 1 and 2.
There is no continuity in normal condition.
• If there is continuity, parking brake switch is faulty.
TROUBLESHOOTING
Action
Replace glow heater.
Replace glow relay.
Repair or replace
harness.
Action
Replace F-R lever
switch.
Replace parking brake
switch.
10-025