Suzuki Wagon R Manual page 143

3B1-22 ELECTRICAL POWER STEERING (EPS) SYSTEM (IF EQUIPPED)
DTC C1141/C1142/C1143/C1144/C1145 MOTOR CIRCUIT FAIL
1. Main fuse box
2. "EPS" fuse (30 A)
3. Ignition switch
4. Circuit fuse box
5. "IG coil" fuse (15A)
STEP
1 Was "SYSTEM CHECK FLOW TABLE"
performed?
2 1) Remove steering column hole cover.
2) Check proper connection for 4-pin ("B")
connector to P/S control module.
3) If OK, start engine.
4) Check voltage between "B1" terminal and body
ground and "B2" terminal and body ground
with "B" connector connected to P/S control
module.
Are they 5 – 7 V with steering wheel held at position
for vehicle to run straight?
3 1) Check motor and its circuit referring to
"ON-VEHICLE INSPECTION" of "MOTOR
ASSEMBLY (WITH CLUTCH
INCORPORATED)".
Is motor in good condition?
Fig. for Step 2
6. P / S control module
7. Motor assembly (with clutch incorporated)
8. P / S control module body ground
9. Connector "A"
10. Connector "B"
ACTION
9
10
YES
Go to Step 2.
Go to Step 3.
Substitute a known-
good P/S control
module and recheck.
NO
Go to "SYSTEM
CHECK FLOW
TABLE" in this section.
Repair poor
connection, high
resistance, open or
short to power circuit or
ground in "B1" or "B2"
circuit.
Replace motor
assembly and recheck.