Suzuki RA410, Manual

Page: 410 / 761

ENGINE AND EMISSION CONTROL SYSTEM 6E1-45
TABLE B-9 A/C CONTROL SIGNAL CHECK (IF EQUIPPED) (CONTINUED)
STEP ACTION YES NO
3 1) Check voltage at “A12” terminal under each condi-
tion given in table below.
2) Is check result satisfactory?
0 V
10 – 14 V
While engine running,
A/C switch OFF
While engine running,
A/C switch ON
A/C control system
circuits are in good
condition.
“P/B” wire open or
short
Poor “A12” terminal
connection
If wire and connection
are OK, substitute a
known-good ECM/
PCM and recheck.
Fig. for STEP 1
–10 0 10 20 30 ( C)
20 30 40 50 60 70 80 ( F)
7
6
5
4
3
2
1
Temperature
Resistance
(k )