Automatic Transmission/Transaxle: 5A-67
DTC Troubleshooting
DTC P1702 (No. 52): Internal Malfunction of TCM
S3RH0A5104033
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM memory.
3) After 10 seconds passed from turning ignition switch ON, check DTC.
DTC Troubleshooting
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Is there DTC related to throttle position sensor?
Go to corresponding
DTC flow.
Go to Step 3.
3
Check throttle position signal circuit for IG short
1) Turn ignition switch OFF.
2) Disconnect TCM and ECM connectors from TCM and
ECM.
3) Check proper connection to TCM at terminal “G07-6”
and to ECM at terminal “G03-14”.
4) If OK, turn ignition switch ON and measure voltage
between terminal “G07-6” of disconnected harness side
TCM connector and ground.
Is it 10 – 14 V?
“PPL/WHT” circuit
shorted to power circuit.
Go to Step 4.
4
Check throttle position signal circuit for open
1) Turn ignition switch OFF.
2) Check continuity between terminal “G07-6” of
disconnected harness side TCM connector and terminal
“G03-14” of disconnected harness side ECM connector.
Is continuity indicated?
Go to Step 5.
“PPL/WHT” circuit open.
5
Check throttle position signal circuit for ground short
1) Check continuity between terminal “G07-6” of
disconnected harness side TCM connector and ground.
Is continuity indicated?
“PPL/WHT” circuit
shorted to ground.
Intermittent trouble or
faulty TCM or ECM.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
If OK, substitute a
known-good TCM or
ECM and recheck.
DTC detecting condition
Trouble area
Calculation of current data stored in TCM is not correct
comparing with pre-stored checking data in TCM.
TCM
Step
Action
Yes
No
1
Is DTC P1702 (No. 52) detected after performing “DTC
Confirmation Procedure”?
Faulty TCM.
Replace TCM.
Could be a temporary
malfunction of TCM.
Содержание Liana RH413
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