Suzuki GA413 Service Manual page 108

3B1-10 ELECTRICAL POWER STEERING (P/S) SYSTEM
TABLE A - MIL CIRCUIT CHECK (MIL DOES NOT LIGHT)
TABLE B - MIL CIRCUIT CHECK (MIL FLASHES)
TABLE C - MIL CIRCUIT CHECK (MIL REMAINS ON)
1. To main fuse
2. Ignition switch
3. "EPS" fuse (30A) in fuse box
4. "IG METER" fuse (15A) in fuse box
5. Malfunction indicator lamp (MIL) ("EPS" light)
6. Speedometer
7. Combination meter
8. To VSS
CAUTION:
Be sure to perform SYSTEM CHECK FLOW TABLE before starting diagnosis according to flow table.
TABLE TEST DESCRIPTION:
Table A:
STEP 1: Check fuses.
STEP 2: Check power supply circuit for backup.
STEP 3: Check power supply circuit from ignition switch.
STEP 4: Check "EPS" bulb.
STEP 5: Check short to ground in "EPS" light circuit.
STEP 6: Check high resistance or open in "EPS" light circuit.
STEP 7: Check ground circuit for P/S system.
Table B:
STEP 1: Check monitor coupler.
STEP 2: Check diagnosis switch circuit for P/S system.
Table C:
STEP 1: Check ground circuit on monitor coupler.
STEP 2: Check high resistance or open in diagnosis switch circuit.
STEP 3: Check short to ground in "EPS" light circuit.
15
9. Monitor coupler
10. Diagnosis switch terminal (for P/S system)
11. Ground terminal
12. To ABS control module (if equipped)
13. P/S control module
14. P/S control module body ground
15. Connector "A"