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1A-81 Engine General Information and Diagnosis:
DTC P0340 (No. 15): Camshaft Position (CMP) Sensor Circuit Malfunction
Wiring Diagram
21
31
DTC Detecting Condition and Possible Cause
DTC detecting condition
No CMP sensor signal during engine running (CKP sensor
signal is inputted).
Reference
Connect oscilloscope between terminals "C41-11" of ECM connector connected to ECM and body ground and check
CMP sensor signal. When CKP circuit is failed (open or short), ECM identify the cylinder only by CMP sensor signal.
1. No.1 cylinder
2. No.2 cylinder
DTC Confirmation Procedure
1) Clear DTC.
2) Start engine and keep it at idle for 1 min.
3) Select "DTC" mode on scan tool and check DTC.
BLK/RED
BLK/ORN
C41 (31P)
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
10
30
29
28 27
26
25
24
23
22
3. No.3 cylinder
4. No.4 cylinder
+B
BLU
C41-11
G04 (24P)
7
6
5
4
3
2
1
6
5
16
15
14
13 12
11
10
9
8
12
11
24
23
22
21
20
19
18
17
17
16
• CMP sensor circuit open or short
• Signal rotor teeth damaged
• CMP sensor malfunction, foreign material being
attached or improper installation
• ECM malfunction
[A]: Oscilloscope Waveforms
[B]: CKP sensor signal
5V
ECM
G03 (17P)
4
3
2
1
10
9
8
7
15
14
13
Possible cause
[C]: CMP sensor signal
[D]: 180 ° crank angle
S3RH0A1104039
I2RH0B110051-01
I3RH0A110055-01
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