Suzuki Liana RH418, Supplementary Service Manual

Page: 77 / 371

Engine General Information and Diagnosis: 1A-64
DTC Troubleshooting
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2 Check CMP sensor and connector for proper installation
Is CMP sensor installed properly and connector connected
securely?
Go to Step 3. Correct.
3 Check wire harness and connection
1) Disconnect connector from CMP sensor.
2) Check for proper connection to CMP sensor at each
terminal.
3) If OK, turn ignition switch and check for voltage at each
terminal of sensor connector disconnected.
CMP sensor voltage
Terminal “B+”: 10 – 14 V
Terminal “Vout”: 4 – 5 V
Terminal “GND”: 0 – 1 V
Is check result satisfactory?
Go to Step 5. Go to Step 4.
4 Was terminal “Vout” voltage out of specification in Step 3
check? “BLU” wire open, short
or poor connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck. “BLK/RED” or “BLK/
ORN” wire open, short
or poor connection.
5 Check ground circuit for open
1) Turn ignition switch OFF.
2) Check for continuity between “GND” terminal of CMP
sensor connector and engine ground.
Is continuity indicated?
Go to Step 6. “BLK/ORN” wire open or
poor ground connection.
I3RH0B110006-01