Suzuki WagonR+ RB310 Service Manual page 1836

INSPECTION
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Is DTC P1500 (Engine starter signal circuit
malfunction) detected?
3 Check CMP Sensor for Resistance.
1) Measure resistance of CMP sensor by referring to
"CMP SENSOR (PICK UP COIL) RESISTANCE"
in SECTION 6F.
Is resistance within specified value?
4 Check Wire Harness.
1) With ignition switch at OFF position, disconnect
ECM (PCM) electrical connectors.
2) Measure resistance from terminal "E23-2" to
"E23-10" of ECM (PCM) connector.
Is resistance within 185 – 275 Ω at 20_C (68_F)?
5 Check Air Gap Between Rotor Tooth and Sensor. See
Fig. 1.
1) Remove Distributor cap.
2) Visually inspect CMP sensor signal rotor for
damage.
3) Measure air gap by referring "SIGNAL ROTOR
AIR GAP" in Section 6F.
Was any damage found?
Fig. 1 for Step 5
"a": Air gap
ACTION
GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-73
YES
Go to Step 2.
Go to DTC P1500
Diag. Flow Table.
Go to Step 4.
Go to Step 5.
Faulty CMP sensor
signal rotor.
NO
Go to "ENGINE DIAG.
FLOW TABLE".
Go to Step 3.
Faulty CMP sensor.
"WHT" or "BLK" wire
open or short.
Poor connection of
CMP sensor
connector terminal.
Poor connection of
ECM (PCM)
connector terminal.
If OK, substitute a
known-good ECM
(PCM) and recheck
CMP.