Dtc P1510: Ecm Back-Up Power Supply Malfunction - Suzuki Grand Vitara 2011 Manual

1A-175 Engine General Information and Diagnosis: For Petrol Engine Model

DTC P1510: ECM Back-Up Power Supply Malfunction

Wiring Diagram
15 14 13 12 11
30 29 28 27 26
44
45 43 42 41
60 59 58 57 56
Circuit Description
Battery voltage is supplied so that DTC memory, values for engine control learned by ECM, etc. are kept in ECM even
when the ignition switch is turned OFF.
DTC Detecting Condition and Trouble Area
DTC detecting condition
Back-up power circuit voltage is no inputted for 5 seconds
continuously while engine is running.
(1 driving cycle detection logic)
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC using scan tool and run engine at idle speed for 1 min.
3) Check DTC and pending DTC.
WHT
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
1. ECM
2. "DOME" fuse
WHT
2
2 1 15 14 13 12 11
17 16 30 29 28 27 26
44
32 31 45 43 42 41
47 46 60 59 58 57 56
Battery voltage supply circuit
1
E23-2
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
Trouble area
S6JB0A1114062
2 1
17 16
32 31
47 46
I5JB0A110066-01