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DTC P0103 Mass Air Flow Circuit High Input
WIRING DIAGRAM
3
WHT/BLU
BLK/YEL
60A 15A
80A
C64
7
6
5
4
3
17
16
15
14
13
12
11
27
26
25
24
23
22
21
34
33
32
31
1. MAF and IAT sensor
2. MAP sensor
3. Ignition switch
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
DTC will be set when all of the following conditions are
detected for 5 seconds continuously.
• Engine is running
• After 3 seconds from ignition switch ON, and current of
MAF sensor output is more than the specified value for the
specified time continuously.
DTC CONFIRMATION PROCEDURE
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Start engine and run it for 10 sec.
4) Check DTC and pending DTC.
BLK/YEL
4
BLK/YEL
BLK/RED
BLK/YEL
1
BLK/RED
PNK/BLK
ORN
2
ORN
RED/WHT
GRY/RED
C63
2
1
7
6
5
4
3
10
9
8
19
18
17
16
15
14
13
12
20
19
18
27
26
25
24
30
29
28
35
34
33
32
4. Main relay
7. To other sensors
5. ECM
6. To TP sensor
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-73
5
BLK/WHT
G91-28
BRN/WHT
C64-15
BLK/RED
G91-6
BLK/RED
G91-5
C63-14
ORN
C63-28
ORN
7
C63-15
GRY/RED
C63-8
6
G91
2
1
6
5
4
3
11
10
9
8
16
15
14
13
12
11
10
23
22
21
20
27
26
25
24
23
22
21
20
31
30
29
28
35
34
33
32
31
• Open or short in MAF sensor circuit
• MAF sensor
• ECM
C63-1
C64-2
C64-1
5V
12V
2
1
9
8
7
19
18
17
30
29
28
TROUBLE AREA
BLK/ORN
BLK
BLK/ORN
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