FNR5 - Automatic Transaxle/Transmission

Transaxle Drive Cycle Test

NOTE: Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.

NOTE: The Transaxle Drive Cycle Test must be followed exactly. Transaxle failure must occur 4 times consecutively for shift error DTC code to be set, and 5 times consecutively for continuous torque converter clutch code to set.

NOTE: When carrying out the Transaxle Drive Cycle Test, refer to the Solenoid Application Chart for correct solenoid operation.

After carrying out the Quick Test, use the Transaxle Drive Cycle Test for checking continuous codes.
1. Record and then erase Quick Test codes.
2. Warm engine to normal operating temperature.
3. Make sure transaxle fluid level is correct.
4. With transaxle in D position, moderately accelerate from stop to 80 km/h (50 mph). This allows the transaxle to shift into 5th gear. Hold speed and throttle open steady for a minimum of 15 seconds.

5. NOTE: PCA, EPC and VFS all refer to the solenoids. PCA is preferred for this transmission because the diagnostic tool displays PCA.

With transaxle in 5th gear and maintaining steady speed and throttle opening, lightly apply and release brake to operate stop lamps. Then hold speed and throttle steady for a minimum of 5 seconds.
6. Brake to a stop and remain stopped for a minimum of 20 seconds.
7. Repeat Steps 4 through 6 at least 5 times.
8. Carry out Quick Test and record continuous DTCs.

After On-Board Diagnostics

NOTE: The vehicle wiring harness, powertrain control module (PCM) and non-transaxle sensors may affect transaxle operations. Repair these concerns first.

After the on-board diagnostic procedures are completed, repair all DTCs.

Begin with non-transaxle related DTCs, then repair any transaxle related DTCs. Refer to Diagnostic Trouble Code Charts for information on condition and symptoms. This chart will be helpful in referring to the correct manual(s) and aids in diagnosing internal transaxle concerns and external non-transaxle inputs. The pinpoint tests are used in diagnosing transaxle electrical concerns. Make sure that the vehicle wiring harness and the PCM are diagnosed as well. Computers and Control Systems will aid in diagnosing non-transaxle electronic components. FNR5 Automatic Transaxle/Transmission

Before Pinpoint Tests

NOTE: Before entering pinpoint tests, check the powertrain control module wiring harness for correct connections, bent or broken pins, corrosion, loose wires, correct routing, correct seals and their condition. Check the PCM, sensors and actuators for damage. Refer to Computers and Control Systems.

NOTE: If a concern still exists after electrical diagnosis, refer to Diagnosis By Symptom.

If DTCs appear while carrying out the on-board diagnostics, refer to Diagnostic Trouble Code Charts for the appropriate repair procedure. Prior to entering pinpoint tests, refer to any TSBs for transaxle concerns. FNR5 Automatic Transaxle/Transmission