Mazda B-Series 1997 Workshop Manual page 784

ON-BOARD DIAGNOSIS SYSTEM
K
Using transmission tester:
Set MODE switch to BENCH
Rotate GEAR SELECTOR switch to OHMS CHECK
Connect negative lead of ohmmeter to SS1 jack and
positive lead to VPWR jack for SS1 test.
Connect negative lead of ohmmeter to SS2 jack and
positive lead to VPWR jack for SS2 test.
Connect negative lead of ohmmeter to SS3 jack and
positive lead to VPWR jack for SS3 test.
Resistance for all three solenoids should be between
22 to 48 ohms.
Are shift solenoid resistance within specification?
Check for continuity between BAT- (engine ground)
and appropriate jack with an ohmmeter.
For SS1 test, use SS1 or VPWR jack
For SS2 test, use SS2 or VPWR jack
For
SS3
test, use SS3 or VPWR jack
Connection should show infinite resistance (no
continuity)
-
Is there continuity?
ACTION
Go to step 6.
Check for open or short in harness, solenoid
or PCM concern.
Replace PCM. Go to step 14.
Go to step 7.
STEP
5
6
I
No
1
:%ernal harness or solenoid concerns
I
Yes
may cause reading out of specification.
Go to step 9.
INSPECTION
Go to step 8.
to diagnose shift concerns.
Install transmission tester.
K-74
Perform solenoid function test. K-78
Listen for the solenoid to activate (click).
Does voltage and solenoid state change?
Reconnect PCM.
Perform transmission drive test.
=
K-78
Does the vehicle upshift when commanded by the
tester?
Drain fluid and remove fluid pan.
Caution
Use only MerconmV
ATF
or equivalent. Use of
any other fluids may result in a transmission
malfunction or failure.
Check internal harness connector is fully engaged on
shift solenoids.
Check internal harness connector terminals are fully
seated in connector.
Inspect connectors for tiamage and wires for insulation
damage.
Is everything OK?
Yes
No
Yes
No
Yes
Go to step 10.
Service as required.