Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Test Notes

Diagnostic Trouble Codes
P1711/636 Out of Self-Test Range
PO713/637, PO712/638Transmission Fluid Temperature Sensor Circuit Open/Grounded
P1783/657 Transmission Overtemp Indicated

Components
- Transmission Wiring Harness Transmission Fluid Temperature Sensor (TFT) Sensor Signal Return (SIG RTN).
- Powertrain Control Module.

NOTE: This Pinpoint Test is designed to diagnose the Transmission Fluid Temperature Sensor electrical system ONLY. To prevent replacement of good components, note that the following areas may be at fault:
^ Engine - Cooling
^ Electrical - Battery, wiring harnesses
^ Transmission - Internal transmission components, cooling, fluid