5A
DTC P1725 (No.32): Throttle Position Signal Circuit High (M13A Model without VVT)
Wiring Diagram
1. TCM [A]: Terminal arrangement of TCM connector (M13 engine model with VVT) (viewed from harness side)
2. ECM [B]: Terminal arrangement of ECM connector (M13 engine model without VVT) (viewed from harness side)
DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
Too long low signal of pulse signal from ECM to TCM continues out of specification.
• Throttle position sensor or its circuit malfunction.
• Throttle position signal circuit from ECM to TCM open or shorted to power circuit.
• TCM
• ECM
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories.
3) Turn ignition switch ON.
4) Depress accelerator pedal fully and keep it for 10 seconds.
5) Release accelerator pedal and keep it for 10 seconds.
6) Check 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 (P0120)?
Go to corresponding DTC Table:M13A without VVT .
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 “E124-6” and to ECM at terminal “E113-15”.
4) If OK, turn ignition switch ON and measure voltage between terminal “E124-6” of disconnected harness side TCM connector and ground.
Is it 10 – 14 V?
“BLK/RED” 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 “E124-6” of disconnected harness side TCM connector and terminal “E113-15” of disconnected harness side ECM connector.
Is continuity indicated?
Intermittent trouble or faulty TCM or ECM. Check for intermittent referring to Intermittent and Poor Connection Inspection . If OK, substitute a known-good TCM or ECM and recheck.
“BLK/RED” circuit open.