Suzuki Wagon R Manual page 132

TABLE-C "EPS" WARNING LAMP REMAINS ON (EVEN THOUGH DIAGNOSIS
SWITCH TERMINAL GROUNDED)
STEP
1 Was "SYSTEM CHECK FLOW TABLE"
performed?
2 1) Short diagnosis switch terminal to body ground
by service wire.
Does "EPS" warning lamp turn ON with ignition
switch ON position?
3 1) Turn ignition switch to OFF position.
2) Remove steering column lower cover.
3) Disconnect 8-pin ("A") connector from P/S
control module.
4) Check proper connection to P/S control
module at terminal "A7".
5) If OK, check resistance between "A7" terminal
and "BI/W" wire terminal on monitor coupler.
Is resistance 1 Ω or less?
4 1) Check proper connection to P/S control
module at terminal "A6".
2) If OK, turn ignition switch to ON position.
3) Check voltage between "A6" and body ground.
Is it 10 – 14 V?
Fig. for Step 2
1. Monitor
coupler
2. Diagnosis
switch
terminal
3. Ground
terminal
Fig. for Step 4
ELECTRICAL POWER STEERING (EPS) SYSTEM (IF EQUIPPED) 3B1-11
ACTION YES
Go to Step 2.
Repair high resistance
or open in ground
("B" wire) circuit on
monitor coupler.
Go to Step 4.
Substitute a
known-good P/S
control module and
recheck.
Fig. for Step 3
1. Monitor coupler
2. Diagnosis switch terminal
NO
Go to "SYSTEM
CHECK FLOW
TABLE" in this section.
Go to Step 3.
Repair high resistance
or open in "BI/W" wire
circuit.
Repair short to ground
in "EPS" light ("Gr"
wire) circuit.