Dtc P0462: Fuel Level Sensor Circuit Low - Suzuki Grand Vitara 2011 Manual

Step
7 EVAP canister purge control circuit check
1) With ignition switch turn OFF, measure resistance
between "E23-1/16" terminal and "C37-13" terminal of
ECM connector.
Is resistance below 40

DTC P0462: Fuel Level Sensor Circuit Low

Wiring Diagram
BLK/RED
BLK/YEL
WHT/GRN
15 14 13 12 11
30 29 28 27 26
45 44 43 42 41
60 59 58 57 56
1. Fuel pump assembly
2. Fuel pump
3. Main fuel level sensor
DTC Detecting Condition and Trouble Area
DTC detecting condition
Fuel level sensor voltage is lower than 0.5 V for 3 seconds
continuously.
(1 driving cycle detection logic but MIL does not light up)
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 30 sec. or more.
4) Check DTC and pending DTC.
Engine General Information and Diagnosis: For Petrol Engine Model 1A-148
Action
Ω ° °
at 20 C, 68 F?
6
BLK/RED
BLU/BLK
BLK/RED
BLK/WHT
1
BLK
YEL/GRN
BLK/YEL
4
E23
10 9 8 7 6 5 4 3
25 24 23 22 21 20 19 18
40 39 38 37 36 35 34 33
55 54 53 52 51 50 49 48
4. Sub fuel level sensor
5. ECM
6. Main relay
Faulty ECM. Substitute
a known-good ECM and
recheck.
7
2
BLU/BLK
PNK
3
2 1 15 14 13 12 11
17 16 30 29 28 27 26
32 31 45 44 43 42 41
47 46 60 59 58 57 56
• ECM power and/or ground circuit malfunction
• ECM malfunction
• Fuel level sensor and/or its circuit malfunction
Yes
"GRN/BLK" and/or
"BLU/BLK" wire are high
resistance circuit.
5
BLU
E23-60
12V
BLU/BLK E23-1
BLU/BLK E23-16
E23-15
WHT/GRN
12 V
E23-24
YEL/RED
C37
10 9 8 7 6 5 4 3
25 24 23 22 21 20 19 18
40 39 38 37 36 35 34 33
55 54 53 52 51 50 49 48
7. Fuel pump relay
Trouble area
No
S6JB0A1114048
5V
2 1
17 16
32 31
47 46
I5JB0A110055-02