Suzuki GA413, Руководство по обслуживанию

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ELECTRICAL POWER STEERING (P/S) SYSTEM 3B1-21
DTC C1122 ENGINE SPEED SIGNAL CIRCUIT FAIL
1. To main fuse
2. Ignition switch
3. “EPS” fuse (30A) in fuse box
4. “IG METER” fuse (15A) in fuse box 5. ECM
6. P/S control module
7. Connector “A”
CAUTION:
Be sure to perform SYSTEM CHECK FLOW TABLE before starting diagnosis according to flow table
of each DTC.
NOTE 1:
It is necessary for SUZUKI scan tool to perform STEP 3 of this table.
STEP ACTION YES NO
1 1) Recheck DTC with engine running.
2) Is DTC C1122 indicated?
Go to STEP 2. It is nothing abnormal
for DTC C1122. Sys-
tem is in normal condi-
tion.
2 1) Check proper connection to P/S control module
and ECM at each “Br” wire terminal (P/S control
module side: “A5” terminal, ECM side: Refer to
WIRING DIAGRAM in SECTION 6E), then check
intermittent trouble. Refer to INTERMITTENT
TROUBLE in SECTION 0A.
2) Is check result in good condition?
Go to STEP 3. Repair poor connec-
tion or intermittent
trouble.
3 1) See NOTE 1 describe above.
2) Using SUZUKI scan tool, read data list for P/S
system. Refer to SUZUKI scan tool operator’s
manual.
3) Check engine speed.
4) Is proper engine speed indicated?
Substitute a known-
good P/S control mod-
ule and recheck.
Repair high resistance,
open or short to power
circuit or ground in “Br”
wire circuit.
NOTE:
Upon completion of inspection and repair work, repeat SYSTEM CHECK FLOW TABLE to confirm that the
trouble has been corrected.