Suzuki RA410, Manual

Page: 387 / 761

6E1-22 ENGINE AND EMISSION CONTROL SYSTEM
DTC NO. 15 CAMSHAFT POSITION SENSOR CIRCUIT
(NO SIGNAL FROM CMP SENSOR WHILE CLANKING ENGINE FOR MORE THAN 4
SECONDS)
WIRING DIAGRAM
1. Cam shaft position (CMP)
sensing rotor
2. CMP sensor
3. CMP sensor connector
4. Shield wire
5. ECM/PCM connector
6. ECM/PCM
4
W
B
A10
A9
TROUBLESHOOTING
STEP ACTION YES NO
1 Did you perform ENGINE DIAGNOSIS FLOW
TABLE in SECTION 6?
Go to Step 2. Go toENGINE DIAGNO-
SIS FLOW TABLE in
SECTION 6.
2 1) Measure resistance of CMP sensor by referring
to CMP SENEOR (PICK UP COIL) RESIS-
TANCE in SECTION 6F1.
Is resistance within specified value?
Go to Step 3. Faulty CMP sensor.
3 1) With ignition switch at OFF position, disconnect
ECM/PCM electrical connectors.
3) Measure resistance from terminal “A10” to “A9”
of ECM/PCM connector.
Is resistance within 660 – 810 at 20 C (68 F)?
Go to Step 4. “W” or “B” wire open or
short.
Poor connection of CMP
sensor connector termi-
nal.
4 1) Remove Distributor cap.
2) Visually inspect CMP sensor signal rotor for
damage.
Was any damage found?
Faulty CMP sensor sig-
nal rotor.
Poor connection of ECM/
PCM connector terminal.
If OK, substitute a
known-good ECM/PCM
and recheck CMP.
NOTE:
Upon completion of inspection and repair work, perform DTC CONFIRMATION PROCEDURE in this sec-
tion and confirm that the trouble has been corrected.