Pinpoint Test A: Automatic Transmission Fluid Temperature Sensor Circuit Tests

A1: AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT TEST 1
1. Refer to the relevant service information and remove the transmission control module
2. Measure the resistance between the automatic transmission internal wiring harness connector terminals 8 and 7
  
  Is the measured resistance infinitely high (open circuit)?
  - Yes : Check the automatic transmission internal wiring harness for open circuit. Repair or install a new wiring harness as necessary
  - No : GO to A2.
A2: AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT TEST 2
1. Measure the resistance between the automatic transmission internal wiring harness connector terminal 8 and the automatic transmission casing
  
  Is the measured resistance infinitely high (open circuit)?
  - Yes : GO to A3.
  - No : Check the automatic transmission internal wiring harness for short circuit to ground. Repair or install a new wiring harness as necessary
A3: AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT TEST 3
1. Measure the resistance between the automatic transmission internal wiring harness connector terminal 7 and the automatic transmission casing
  
  Is the measured resistance infinitely high (open circuit)?
  - Yes : GO to A4.
  - No : Check the automatic transmission internal wiring harness for short circuit to ground. Repair or install a new wiring harness as necessary
A4: AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT TEST 4
1. Measure the resistance between the automatic transmission internal wiring harness connector terminal 8 and all other terminals in the connector (except terminal 7)
  
  Is the measured resistance infinitely high (open circuit)?
  - Yes : GO to A5.
  - No : Check the automatic transmission internal wiring harness for short circuit. Repair or install a new wiring harness as necessary
A5: AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT TEST 5
1. Measure the resistance between the automatic transmission internal wiring harness connector terminal 7 and all other terminals in the connector (except terminal 8)
  
  Is the measured resistance infinitely high (open circuit)?
  - Yes : Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new transmission control module
  - No : Check the automatic transmission internal wiring harness for short circuit. Repair or install a new wiring harness as necessary

NOTE:

There is no resistance specification for the input shaft speed sensor, but it should not be open circuit (check for continuity only).
The Gear Selector Sensor Calibration routine must be performed after installing a new automatic transmission or transmission control module, or after removing and installing the existing transmission control module.