Suzuki WagonR+ RB310 Service Manual page 2630

SYSTEM WIRING DIAGRAM
1. Ignition switch
2. Main relay
3. Ignition coil assembly
for No.1 and No.4
spark plugs
4. Ignition coil assembly
for No.2 and No.3
spark plugs
Condition
Engine cranks, but will
not start or hard to
start
Poor fuel economy or
engine performance
5. CMP sensor
6. CKP sensor
7. No.1 spark plug
8. No.2 spark plug
9. No.3 spark plug
10. No.4 spark plug
DIAGNOSIS
Possible Cause
No spark
D Blown fuse for ignition coil
D Loose connection or disconnection of lead
wire or high-tension cord(s)
D Faulty high-tension cord(s)
D Faulty spark plug(s)
D Faulty ignition coil
D Faulty CKP sensor or crankshaft timing belt
pulley
D Faulty ECM
D Incorrect ignition timing
D Faulty spark plug(s) or high-tension cord(s)
D Faulty ignition coil assembly
D Faulty CKP sensor or crankshaft timing belt
pulley
D Faulty ECM
IGNITION SYSTEM (ELECTRONIC IGNITION SYSTEM) 6F1-3
11. Sensed information
D MAP sensor
D ECT sensor
D IAT sensor
D TP sensor
D Knock sensor
D VSS
Replace.
Connect securely.
Replace.
Adjust, clean or replace.
Replace ignition coil assembly.
Clean, tighten or replace.
Replace.
Check related sensors and
crankshaft timing belt pulley.
Adjust, clean or replace.
Replace.
Clean, tighten or replace.
Replace.
D Park / Neutral position signal
D Electric load signal
D Engine start signal
D Test switch terminal
(Vehicle without EGR valve)
Correction