Turbine Shaft Speed (Tss) Sensor, Output Shaft Speed (Oss) Sensor And Overdrive Drum Speed Sensor (Ods) 5R55E Only - Mazda B-Series 1997 Workshop Manual

ON-BOARD DIAGNOSIS SYSTEM
Diagnostic trouble codes
P0715, P0720, P0721, Pi721
Using NGS Tester, access TSS, ODs and OSS PIDs.
Does vehicle enter PIDIDATA MONITOR AND
RECORD screen?
Turbine Shaft Speed (TSS) Sensor, Output Shaft Speed (OSS)
Sensor and Overdrive Drum Speed Sensor (ODSk5R55E Only
STEP
1
Remain in PIDIDATA MONITOR AND RECORD.
Wiggle all wiring and connectors in the transmission.
Monitor the PlDs for any changes.
Does TSS, ODs or OSS PID change?
I
I
While monitoring
andlor lor
OSS PID, drive vehicle so
transmission upshifts and downshifts through all gears.
Does TSS, ODs or OSS PID increase or decrease with
engine and vehicle speed or is the sensor signal erratic
(drop to zero or near zero and return to normal
operation)?
ACTION
Remain in PIDIDATA MONITOR AND
RECORD. Go to step 2.
INSPECTION
Check to make sure transmission harness is fully
seated, terminals are fully engaged in connector and in
good condition before proceeding.
e FT-131 in this manual.
I
Yes
No
I
go to Pag
4
I
Yes
Repeat procedure. If vehicle still does not
enter PlDlDATA MONITOR AND RECORD.
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I
Repair open or short in harness.
I
decreases with engine and vehicle speed,
clear all DTCs and road test. If concern is
still present, refer to Quick Diagnosis Chart
in this section for further diagnosis.
No
Yes
If sensor signal is erratic, inspect for
intermittent concerns in internallexternal
harness, sensor or connector.
Go to step 3.
If TSS, ODs or OSS PID increases or
No
ODS and/or OSS:
Connect negative lead of ohmmeter to one pin of the
sensor and positive lead to other sensor pin.
Resistance should be approximately
305-735
ohms.
If TSS, ODs or OSS PID does not increase
or decrease with engine and vehicle speed,
inspect for open or short in vehicle harness,
sensor, PCM or internal hardware.
4
TSS:
Connect negative lead of ohmmeter to signal return pin
of the sensor and positive lead to TSS signal at
transmission connector. Resistance should be 64
-
126 ohms.
Disconnect connector from OSS sensor. For TSS
sensor, disconnect vehicle harness connector.
For TSS, refer to disassembly procedure in
this section for repair
No
I
1
Is resistance within specification?
I I I
Yes
For OSS andlor ODs, replace sensor.
1
If sensor signal is steady, go to step 4.
Refer to Quick Diagnosis Chart in this section
for further diagnosis.