Suzuki Wagon R Manual page 2119

6-2-116 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
DTC P0340 Camshaft Position Sensor Circuit
Wiring Diagram
BLU/BLK
5
WHT/BLU
BLK/YEL
80A 60A 20A
E23
7 6 5 4
17 16 15 14 13 12
27 26 25 24 23 22
34 33 32
1. CMP sensor 3. ECM
2. Signal rotor 4. Main relay
System Description
The CMP sensor located on the transmission side of cylinder head consists of the signal generator (magnetic
sensor) and signal rotor (intake camshaft portion).
The signal generator generates Reference signal through slits in the slit plate which turns together with the cam-
shaft.
Reference signal
The CMP sensor generates 6 pulses of signals each of which has a different waveform length while the cam-
shaft makes one full rotation. Refer to "Inspection of ECM and Its Circuits" in this section.
Based on these signals, ECM judges which cylinder piston is in the compression stroke and the engine speed.
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
No CMP sensor signal for 2.4 seconds at engine crank-
ing while starting motor signal is inputting
4
BLK/YEL
BLK/RED
BLK/YEL
2
E22
3 2 1 7 6 5 4 3
11 10 9 8 19 18 17 16 15 14 13 12
21 20 19 18 27 26 25 24
31 30 29 28 35 34 33 32
5. Ignition switch
6. Starting motor
BLK/WHT E21-28
BLK/YEL E22-35
6
BLU/BLK E23-15
BLK/RED E21-6
BLK/RED
E21-5
BLK/RED
1
ORN E22-10
BLK
E21
2 1 6 5 4 3
11 10 9 8 16 15 14 13 12 11 10 9
23 22 21 20 27 26 25 24 23 22 21 20
31 30 29 28 35 34 33 32 31
• CMP sensor circuit open or short
• Signal rotor teeth damaged
• CMP sensor malfunction, foreign material being
attached or improper installation
• ECM
• Engine start signal circuit malfunction
3
E22-1
E23-2
E23-1
12V 5V
5V
2 1
8 7
19 18 17
30 29 28
Trouble Area
BLK
BLK/YEL
BLK/YEL