Suzuki Jimny Service Manual page 463

6-106 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Step
3 Is it about 12 V at Step 2?
4 Check signal circuit.
1) Disconnect TCM coupler with ignition switch
OFF.
2) Check voltage between E21-20 terminal
and body ground with ignition switch ON.
See Fig. 2.
Is it about 12 V?
[A] Fig. 1 for Step 2 / [B] Fig. 2 for Step 4
Action Yes
"B/R" wire open, poor
E21-11 connection or
TCM power or ground cir-
cuit open.
If wires and connections
are OK, substitute a
known-good TCM and
recheck.
Check TCM power and
ground circuit for open.
If OK, substitute a known-
good TCM and recheck.
No
Go to Step 4.
"B/R" wire shorted to
ground or poor E17-17
terminal connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.