Diagnostic Strategy
Special Tools Illustration Tool Name Tool Number Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool
Scheme 11
Troubleshooting an electronically-controlled automatic transaxle is simplified by using the proven method of diagnosis. One of the most important things to remember is that there is a definite procedure to follow.
Note. Do not take any shortcuts or assume that critical checks or adjustments have already been made.
Follow the procedures as written to avoid missing critical components or steps.
To correctly diagnose a concern, have the following publications available
- «INTRODUCTION -- GASOLINE ENGINES»(ref-268480) .
- TSB Messages.
- «SYSTEM WIRING DIAGRAMS»(ref-252458) article.
These publications provide the necessary information when diagnosing transaxle concerns.
Use the Diagnostic Flow Chart as a guide and follow the steps as indicated.
Preliminary Inspection
- Know and understand the customers concern.
- Verify the concern by operating the vehicle.
- Check the transmission fluid levels and condition.
- Check for non-factory add-on items.
- Check selector lever linkages for correct adjustment.
- Check TSB messages regarding the concern.
Diagnostics
- Carry out on-board diagnostic procedures key ON engine OFF (KOEO) and key ON engine running (KOER).
- Record all DTCs.
- Repair all non-transaxle DTCs first.
- Repair all transaxle DTCs second.
- Erase all continuous DTCs and attempt to repeat them.
- Repair all continuous DTCs.
- If only pass DTCs are obtained, proceed to the Diagnosis by Symptom Index. Refer to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) for further information and diagnosis.
Follow the diagnostic sequence to diagnose and repair the concern the first time.
Diagnostic Flow Chart
Special Tools Illustration Tool Name Tool Number Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool
Prior to carrying out the flow test, the following items should be checked
- Know and understand the customer concerns.
- Check the transmission fluid level and condition.
- Verify the concern by operating the vehicle.
- Check for non-factory installed items and verify correct installation.
- Check the selector lever linkage adjustments.
- Check TSBs for vehicle concerns.
- Carry out self-test both key ON engine running (KOER) and key ON engine OFF (KOEO).
- Record all DTC codes.
| Test | Result | Action |
|---|---|---|
| 1) Were any DTCs recorded? | Yes | REPAIR all hard DTCs. FOLLOW the pinpoint tests. REFER to the Introduction - Gasoline Engines article first, then this article. |
| No | REFER to Diagnosis By Symptom , then Go to Step 5. | |
| 2) Are any continuous test memory codes present? | Yes | CLEAR codes and CARRY OUT drive cycle test. |
| No | Go to Step 4. | |
| 3) Did the continuous test memory codes reappear? | Yes | REPAIR all continuous test memory codes. FOLLOW the pinpoint tests. REFER to the Introduction - Gasoline Engines article , then this article, then Go to Step 4. |
| No | Go to Step 4. | |
| 4) Is the concern repaired? | Yes | CARRY OUT the final quick test to verify that no DTCs are present. CLEAR memory codes. RETURN vehicle to customer. |
| No | REFER to Diagnosis By Symptom . | |
| 5) Are there any electrical concerns? | Yes | INSTALL the scan tool and CARRY OUT output state control test, then Go to Step 6. |
| No | REFER to the hydraulic and mechanical routine to diagnose and repair the concern, then Go to Step 7. | |
| 6) Was the transaxle concern corrected when the scan tool was installed? | Yes | REFER to the Introduction - Gasoline Engines article, intermittent fault diagnosis information and use the scan tool to diagnose cause of concern in the processor, vehicle harness or external inputs (sensors or switches). |
| No | REFER to the hydraulic and mechanical routine to diagnose the concern, then Go to Step 7. | |
| 7) Is the concern repaired? | Yes | CARRY OUT the final self-test to verify that no DTCs are present. CLEAR memory codes. RETURN the vehicle to the customer. |
| No | Concern should have been repaired. GO back through the Diagnostic Flow Chart and REVIEW other components that may have contributed to the concern. CHECK and DIAGNOSE those components. GET assistance from other sources. |
DIAGNOSTIC FLOW CHART
The following items must be checked prior to beginning the diagnostic procedures
Road Testing Vehicle
Note. Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.
The Shift Point Road Test and Torque Converter Clutch Operation Test provide diagnostic information on transaxle shift controls and torque converter operation.
Shift Point Road Test
This test verifies that the shift control system is operating correctly.
- Bring engine and transaxle up to normal operating temperature.
- Operate the vehicle with the selector lever in the D position (overdrive switch ON).
- Apply minimum throttle and observe the speeds at which upshift occurs and torque converter engages. Refer to «SHIFT SPEEDS CHART»(ref-278257-S32385919152008012400000) for the appropriate final drive ratio.
- Stop the vehicle. Select the D position (overdrive switch OFF). Repeat Step 3. The transaxle will make all upshifts, except 3rd to 4th, and torque converter clutch (TCC) apply should occur above 80 km/h (50 mph).
- Press the accelerator pedal to the floor, wide open throttle (WOT). The transaxle should shift from 3rd to 2nd, or 3rd to 1st, depending on vehicle speed, and TCC should release.
- With vehicle speed above 48 km/h (30 mph), move the selector lever from D position to L position and release the accelerator pedal. The transaxle should immediately downshift to 2nd gear. When vehicle speed drops below 32 km/h (20 mph), the transaxle should downshift into 1st gear.
- If transaxle fails to upshift/downshift or torque converter clutch does not apply/release, refer to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) for possible causes.
| Throttle Position | Shift | Final Drive Ratio 3.733:1 | |
|---|---|---|---|
| Closed | 4-3 | 35-19 km/h | 22-12 mph |
| 3-2 | 19-3 km/h | 12-2 mph | |
| 2-1 | 19-3 km/h | 12-2 mph | |
| Minimum monitor | 1-2 | 12-28 km/h | 8-18 mph |
| PID TP | 2-3 | 27-43 km/h | 17-27 mph |
| Volt = 1.25 | 3-4 | 43-59 km/h | 27-37 mph |
| Wide Open | 1-2 | 51-68 km/h | 32-42 mph |
| 2-3 | 106-122 km/h | 66-76 mph | |
| 3-4 | 148-164 km/h | 92-102 mph | |
SHIFT SPEEDS CHART
Visual Inspection
This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis. Inspect the vehicle for non-Ford factory add-on devices such as
- Electronic add-on items: A/C generator (alternator) engine turbo cellular telephone cruise control CB radio linear booster backup alarm signal computer
- Vehicle modification
These items, if not installed correctly, will affect the PCM, or transaxle function. Pay particular attention to add-on wiring splices in the PCM harness or transaxle wiring harness, abnormal tire size, or axle ratio changes.
- Leaks; refer to «Leakage Inspection»(ref-278257-S42928777702008012400000) .
- Correct selector lever linkage adjustments; refer to «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS»(ref-278265) article.
Carry Out On-Board Diagnostics (Key ON Engine OFF [KOEO], Key ON Engine Running [KOER])
After a road test, with the vehicle warm and before disconnecting any connectors, carry out the Self Test using scan tool. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM.
Special Tools Illustration Tool Name Tool Number Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool
Diagnosing an electronically controlled automatic transaxle is simplified using the following procedures. It is important to remember that there is a definite procedure to follow. Do not take short cuts or assume that critical checks or adjustments have already been made. Follow the procedures as written to avoid missing critical components or steps. By following the diagnostic sequence, the technician will be able to diagnose and repair the concern the first time.
On-Board Diagnostics with Scan Tool
Note. For detailed instruction and other diagnostic methods using the scan tool, refer to the tester and the Introduction - Gasoline Engines article.
These quick tests should be used to diagnose the PCM and should be carried out in order.
- Self Test - Key ON, Engine OFF (KOEO)
- Self Test - Continuous Memory
- Self Test - Key ON, Engine running (KOER)
- PCM Reset Mode
- Clearing DTCs
- OBD II Drive Cycle
- Other Scan Tool Features
For further information on other diagnostic testing features using the scan tool, refer to the Introduction - Gasoline Engines article. Other diagnostic methods include the following
- PID Access Mode
- Freeze Frame Data Access Mode
- Oxygen Sensor Monitor Mode
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 to be set, and 5 times consecutively for continuous torque converter clutch (TCC) code to set.
Note. When carrying out the Transaxle Drive Cycle Test, refer to the SOLENOID OPERATION CHART - CONVERTER ENGAGED and SOLENOID OPERATION CHART - CONVERTER DISENGAGED Solenoid for correct solenoid operation.
After carrying out the Self Test, use the Transaxle Drive Cycle Test for checking continuous codes.
- Record and then erase Self Test DTCs.
- Warm engine to normal operating temperature.
- Make sure transmission fluid level is correct.
- With transaxle in O/D position, moderately accelerate from stop to 80 km/h (50 mph). This allows the transaxle to shift into 4th gear. Hold speed and throttle open steady for a minimum of 15 seconds.
- With transaxle in 4th 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.
- Brake to a stop and remain stopped for a minimum of 20 seconds.
- Repeat Steps 4 through 6 at least 5 times.
- Carry out Self Test and record continuous DTCs.
After On-Board Diagnostics
Note. The vehicle wiring harness, 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 (DTC) Charts for information on condition and symptoms. This chart will be helpful in referring to the correct 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. The INTRODUCTION -- GASOLINE ENGINES article will aid in diagnosing non-transaxle electronic components.
Diagnostic Trouble Code (DTC) Charts
| Five Digit DTC | Component | Description | Condition | Symptom | Action |
|---|---|---|---|---|---|
| P0705 | TR Sensor | TR Circuit Failure | TR circuits, indicating an invalid patterns in TR_1, TR_2, TR_3 and TR_4. Condition caused by a short to ground or an open in P/N, D, R, 2 or 1 circuits. Open in the taillamp ground circuit. This DTC can be set by an incorrectly adjusted TR sensor. | Increase in control pressure (harsh shifts). Defaults to D for an invalid position. MIL on. | Inspect the taillamp ground circuit. Go to Pinpoint Test C . |
| P0712 | TFT | 157°C (315°F) Indicated TFT Sensor Circuit Grounded | Voltage drop across TFT sensor too low for scale set for temperature 157°C (315°F). | Possible firm shift feel. | Go to Pinpoint Test B . |
| P0713 | TFT | 40°C (-40°F) Indicated TFT Sensor Circuit Open | Voltage drop across TFT sensor too high for scale set temperature -40°C (-40°F). | Possible firm shift feel. | Go to Pinpoint Test B . |
| P0715 | TSS | Insufficient Input From Turbine Shaft Speed Sensor | PCM detected a loss of TSS signal during operation. | Harsh shifts, no torque converter clutch activation, and harsh engagement. | Go to Pinpoint Test E . |
| P0717 | TSS | Turbine Shaft Speed Sensor Signal Intermittent | PCM detected a loss of TSS signal during operation. | Harsh shifts, no torque converter clutch activation, and harsh engagement. | Go to Pinpoint Test E . |
| P0718 | TSS | TSS Sensor Signal Erratic | PCM has detected an erratic TSS signal. | Harsh shifts, no torque converter clutch activation, and harsh engagement. | Go to Pinpoint Test E . |
| P0720 | OSS | Insufficient Input From OSS Sensor | PCM detected a loss of OSS signal during operation. | Harsh shift, possible abnormal shift schedule. | Go to Pinpoint Test E . |
| P0721 | OSS | OSS Sensor Signal Noisy | PCM has detected an erratic OSS signal. | Harsh shift, abnormal shift schedule. | Go to Pinpoint Test E . |
| P0722 | OSS | OSS Sensor Signal Intermittent | PCM has detected an intermittent OSS signal. | Harsh shift, abnormal shift schedule. | Go to Pinpoint Test E . |
| P0731 | SSA, SSB, SSC or Internal Parts | 1st Gear Error | No 1st gear. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). Engine RPM could be higher or lower than expected. | Refer to Solenoid On/Off Charts. Go to Pinpoint Test A . |
| P0732 | SSA, SSB, SSC or Internal Parts | 2nd Gear Error | No 2nd gear. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). Engine RPM could be higher or lower than expected. | Refer to Solenoid On/Off Charts. Go to Pinpoint Test A . |
| P0733 | SSA, SSB, SSC or Internal Parts | 3rd Gear Error | No 3rd gear. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). Engine RPM could be higher or lower than expected. | Refer to Solenoid On/Off Charts. Go to Pinpoint Test A . |
| P0734 | SSA, SSB, SSC or Internal Parts | 4th Gear Error | No 4th gear. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). Engine RPM could be higher or lower than expected. | Refer to Solenoid On/Off Charts. Go to Pinpoint Test A . |
| P0741 | TCC | TCC Slippage Detected | The PCM picked up an excessive amount of TCC slippage during normal vehicle operation. | TCC slippage/erratic or no torque converter clutch operation. | Refer to Diagnosis By Symptom . |
| P0750 | SSA | SSA Solenoid Circuit Failure | SSA circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. | No reverse gear (short) or no 4th gear (open). MIL on. | Go to Pinpoint Test A . |
| P0751 | SSA | SSA Functional Failure (Stuck Off) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present, MIL on. | Refer to Diagnosis By Symptom . |
| P0752 | SSA | SSA Functional Failure (Stuck On) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present, MIL on. | Refer to Diagnosis By Symptom . |
| P0753 | SSA | SSA Solenoid Circuit Failure | SSA circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. | No reverse gear (short) or no 4th gear (open). MIL off. | Go to Pinpoint Test A . |
| P0755 | SSB | SSB Solenoid Circuit Failure | SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. | Not all gears present. No converter clutch apply in 3rd and 4th gears. | Go to Pinpoint Test A . |
| P0756 | SSB | SSB Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. No converter clutch apply in 3rd and 4th gears. | Refer to Diagnosis By Symptom . |
| P0757 | SSB | SSB Functional Failure (Stuck ON) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. No converter clutch apply in 3rd and 4th gears. | Refer to Diagnosis By Symptom . |
| P0758 | SSB | SSB Solenoid Circuit Failure | SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. | Not all gears present. No converter clutch apply in 3rd and 4th gears. MIL off. | Go to Pinpoint Test A . |
| P0760 | SSC | SSC Solenoid Circuit Failure | SSC circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. | Not all gears present. | Go to Pinpoint Test A . |
| P0761 | SSC | SSC Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | Go to Pinpoint Test A . |
| P0762 | SSC | SSC Functional Failure (Stuck ON) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | Go to Pinpoint Test A . |
| P0763 | SSC | SSC Solenoid Circuit Failure | SSC circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. | Not all gears present. MIL off. | Go to Pinpoint Test A . |
| P0765 | SSD | SSD Solenoid Circuit Failure | SSD circuit fails to provide voltage drop across solenoid. Circuit open, shorted or PCM driver circuit failure during on-board diagnostics. | Not all gears present. MIL on. | Go to Pinpoint Test A . |
| P0766 | SSD | SSD Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | Go to Pinpoint Test A . |
| P0767 | SSD | SSD Functional Failure (Stuck ON) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | Go to Pinpoint Test A . |
| P0768 | SSD | SSD Solenoid Circuit Failure | SSD circuit fails to provide voltage drop across solenoid. Circuit open, shorted or PCM driver circuit failure during on-board diagnostics. | Not all gears present. MIL off. | Go to Pinpoint Test A . |
| P0770 | SSE | SSE Solenoid Circuit Failure | SSE circuit failed to provide voltage drop across solenoid. Circuit open. Shorted or PCM driver circuit failed during on-board diagnostics. | Not all gears present. MIL on. | Go to Pinpoint Test A . |
| P0771 | SSE | SSE Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | Go to Pinpoint Test A . |
| P0772 | SSE | SSE Functional Failure (Stuck ON) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | Go to Pinpoint Test A . |
| P0773 | SSE | SSE Solenoid Circuit Failure | SSE circuit failed to provide voltage drop across solenoid. Circuit open. Shorted or PCM driver circuit failed during on-board diagnostics. | Not all gears present. MIL off. | Go to Pinpoint Test A . |
| P0960 | EPC | EPC Solenoid Circuit Open | Voltage through EPC solenoid is checked. Error is noted if tolerance is exceeded. | Open circuit-causes maximum EPC pressure, harsh engagements and shifts. | Go to Pinpoint Test D . |
| P0962 | EPC | EPC Solenoid Circuit Failure, Shorted Circuit to Ground | Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded. | Short circuit causes maximum EPC pressure, harsh engagement and shifts. | Go to Pinpoint Test D . |
| P0963 | EPC | EPC Solenoid Circuit Failure, Shorted Circuit to Power | Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded. | Short circuit causes maximum EPC pressure, harsh engagement and shifts. | Go to Pinpoint Test D . |
| P0972 | SSA | SSA Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present, MIL off. | Refer to Diagnosis By Symptom . |
| P0975 | SSB | SSB Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. No converter clutch apply in 3rd and 4th gears. MIL off. | Refer to Diagnosis By Symptom . |
| P0978 | SSC | SSC Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. MIL off. | Go to Pinpoint Test A . |
| P0981 | SSD | SSD Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. MIL off. | Go to Pinpoint Test A . |
| P0984 | SSE | SSE Functional Failure (Stuck OFF) | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. MIL off. | Go to Pinpoint Test A . |
| P1700 | Undetermined Failure | Transmission failed to NEUTRAL. | Transmission functional failure. | When this code is shown in conjunction with other codes, repair the other codes first, then retest. If this code reappears, refer to Diagnosis By Symptom . | |
| P1702 | TR Sensor | TR Circuit Failure | TR circuits indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in P/N, D, R, 2 or 1 circuit. Open in the taillamp ground circuit. This DTC can be set by an incorrectly adjusted TR sensor. | Increase in control pressure (harsh shifts). Defaults to D for an invalid position. MIL off. | Inspect the taillamp ground circuit. |
| P1705 | TR Sensor | TR Not in PARK or NEUTRAL During KOEO/ KOER | KOEO/KOER not run in PARK or NEUTRAL; or TR circuit failure. | Harsh shifts or engagements. | Go to Pinpoint Test C . Rerun KOEO/KOER in PARK or NEUTRAL. |
| P1710 | TFT | Stuck in Midrange | PCM never detects a change in fluid temperature. | Occasional hard shifts. | Go to Pinpoint Test B . |
| P1711 | TFT | TFT Out of On-Board Diagnostic Range | Transmission not at operating temperature during on-board diagnostic. | DTC set-vehicle cold or overheated. | Warm or cool vehicle to normal operating temperature. Go to Pinpoint Test B . |
| P1713 | TFT | No Change in TFT - Low Range | PCM has detected no TFT change at low range during operation. | Incorrect TCC engagement schedule, harsh engagement, harsh shifts. | Go to Pinpoint Test B . |
| P1718 | TFT | No Change in TFT - High Range | PCM has detected no TFT change at high range during operation. | Incorrect TCC engagement schedule, harsh engagement, harsh shifts. | Go to Pinpoint Test B . |
| P1744 | TCC | TCC Slippage Detected (cycling/shudder/ charter) | The PCM picked up an excessive amount of TCC slippage during normal vehicle operation. | TCC slippage/erratic or no torque converter clutch operation. | Go to Pinpoint Test A . See Cycling/Shudder/Chatter. Refer to Diagnosis By Symptom . |
| P1780 | TCS | TCS Input Incorrect for Selected Position | TCS voltage incorrect. | No overdrive cancel when lever is moved. | Rerun on-board diagnostic and cycle switch. For additional information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. |
| P1783 | TFT | Transmission Overtemp Condition Indicated | Transmission fluid temperature exceeded 135°C (275°F). | Increase in control pressure. | Go to Pinpoint Test B . |
DIAGNOSTIC TROUBLE CODE (DTC) INDEX
Scheme 12
| Item | Description |
|---|---|
| 1 | SSA |
| 2 | SSB |
| 3 | SSC |
| 4 | SSD |
| 5 | SSE |
| 6 | PCA |
TRANSAXLE SOLENOID LOCATION
Scheme 13
| Pin | Circuit Function | Connector Color |
|---|---|---|
| 1 | SSE | Green |
| 2 | PCA | Black |
| 3 | SSC | White |
| 4 | TFT SIGRTN | Black |
| 5 | TFT | Black |
| 6 | SSA | White |
| 7 | PCA | Black |
| 8 | SSB | Black |
| 9 | SSD | Blue |
| 10 | SSE GROUND | Green |
| 11 | SSC GROUND | White |
| 12 | SSD GROUND | Blue |
Scheme 14
| Pin Number | 225 Pin PCM | Circuit Function |
|---|---|---|
| 1 | 34 | SSE |
| 2 | 9 | PCA |
| 3 | 44 | SSC |
| 4 | 41 | TFT signal return |
| 5 | 29 | TFT |
| 6 | 42 | SSA |
| 7 | 11 | PCA |
| 8 | 43 | SSB |
| 9 | 46 | SSD |
Scheme 15
| Pin Number | 225 Pin PCM | Circuit Function |
|---|---|---|
| 1 | 1 | VPWR |
| 2 | 19 | Drive position |
| 3 | 12 | 1st position |
| 4 | 27 | Reverse position |
| 5 | 16 | Park position |
| 6 | 6 | Starting system |
| 7 | 28 | 2nd position |
| 8 | 16 | Neutral position |
| 9 | 9 | Starting system |
Scheme 16
| Pin Number | Circuit Function |
|---|---|
| 1 | Output shaft speed sensor (OSS) |
| 2 | Signal return |
| Pin Number | Circuit Function |
|---|---|
| 1 | Turbine shaft speed sensor (TSS) |
| 2 | Signal return |
| Selector Position | TR Sensor Pins Component Side | Expected Value |
|---|---|---|
| PARK | 1 and 2, 3 and 4 | Less than 5 ohms |
| REVERSE | 3 and 5 | Less than 5 ohms |
| NEUTRAL | 1 and 2, 3 and 6 | Less than 5 ohms |
| DRIVE | 3 and 7 | Less than 5 ohms |
| 2 | 3 and 8 | Less than 5 ohms |
| 1 | 3 and 9 | Less than 5 ohms |
TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS CHART
| Selector Lever Position | PID: TR | TR_4 | TR_3 | TR_2 | TR_1 |
|---|---|---|---|---|---|
| PARK or NEUTRAL | P/N | 0 | 0 | 0 | 0 |
| REVERSE | REV | 1 | 0 | 0 | 0 |
| DRIVE | O/D | 0 | 1 | 0 | 0 |
| Manual 2 | Man 2 | 0 | 0 | 1 | 0 |
| Manual 1 | Man 1 | 0 | 0 | 0 | 1 |
TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS PID CHART
Shift Solenoid Pre-Diagnosis
Use the shift solenoid operation chart when carrying out Pinpoint Test A. Refer to SPECIFICATIONS .
| Base Gearshift Selector Position | PCM Commanded Gear | Shift Solenoid A (on/off) | Shift Solenoid B (on/off) | Shift Solenoid C (PWM) | Shift Solenoid D (PWM) | Shift Solenoid E (PWM) |
|---|---|---|---|---|---|---|
| P/N | P/N | On | Off | Off | Off | Off |
| R | R | Off | Off | Off | Off | Off |
| D | 1 | Off | Off | Off | On | On |
| 1(M) | On | On | Off | Off | On | |
| 2 | Off | Off | Off | Off | On | |
| 3 | Off | Off | Off | Off | Off | |
| 4 | On | Off | On | Off | Off | |
| With a on/off solenoid, OFF = No Hydraulic Flow. With a PWM solenoid, OFF = Full Hydraulic Flow. | ||||||
SOLENOID OPERATION CHART - CONVERTER DISENGAGED
| Base Gearshift Selector Position | PCM Commanded D Gear | Shift Solenoid A (on/off) | Shift Solenoid B (on/off) | Shift Solenoid C (PWM) | Shift Solenoid D (PWM) | Shift Solenoid E (PWM) |
|---|---|---|---|---|---|---|
| D | 3 | Off | On | On | Off | Off |
| 4 | On | On | On | Off | Off | |
| With a on/off solenoid, OFF = No Hydraulic Flow. With a PWM solenoid, OFF = Full Hydraulic Flow. | ||||||
SOLENOID OPERATION CHART - CONVERTER ENGAGED
PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR
Note. Refer to the Transaxle Vehicle Harness Connector illustration Transaxle Connector Layouts .
Note. Refer to the Transaxle Internal Harness Diagram illustration Transaxle Connector Layouts .
Scheme 17
Scheme 18
Scheme 19
Scheme 20
Scheme 21
Scheme 22
- B1 ELECTRONIC DIAGNOSTIC SET UP Key in OFF position. Shift selector lever to position P. Check to make sure the transaxle harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding. Connect the diagnostic tool. Key in ON position. Select Diagnostic Data Link. Select PCM. Select PID/Data Monitor and Record. Enter the following diagnostic mode on the diagnostic tool: PIDs; TFT, TFTV Does the vehicle enter PID/Data Monitor and Record? YES : REMAIN in PID/Data Control. Go to B2 . NO : REPEAT procedure to enter PID. If vehicle did not enter PID, REFER to the «Introduction - Gasoline Engines»(ref-268480) article for diagnosis of PCM.
- B2 WARM-UP/COOL-DOWN CYCLE VERIFICATION While monitoring the TFT PIDs, carry out the following test: If transaxle is cold, run transaxle to warm it up. If transaxle is warm, allow transaxle to cool down. Do the TFT PIDs increase as the transaxle is warmed up or decrease as the transaxle is cooled or does the TFT or TFTV drop in and out of range? YES : If the TFT PIDs increase as the transaxle is warmed or decrease as the transaxle is cooled, CLEAR all DTCs. Road test to verify if concern is still present. If concern is still present, REFER to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) . to diagnose transaxle overheating. If the TFT drops in and out of range, INSPECT for intermittent concern in the internal/external harness, sensor or connector. NO : Go to B3 .
- B3 CHECK POWERTRAIN CONTROL MODULE AND VEHICLE HARNESS FOR POWER Disconnect: Transaxle Vehicle Harness Connector Visually inspect all wires and connectors for damage. Measure the voltage between transaxle vehicle harness connector pin 5, harness side and ground; and between transaxle vehicle harness connector pin 4, harness side and ground. Is voltage present? YES : Go to B4 . NO : Go to B5 .
- B4 CHECK VEHICLE HARNESS FOR SHORT TO POWER Disconnect: PCM Connector Measure the voltage between transaxle vehicle harness connector pin 5, harness side and ground; and between transaxle vehicle harness connector pin 4, harness side and ground. Is voltage present? YES : REPAIR the circuit. TEST the system for normal operation. NO : INSTALL a new PCM. TEST the system for normal operation.
- B5 CHECK POWERTRAIN CONTROL MODULE AND VEHICLE HARNESS FOR GROUND Connect: PCM Connector Measure the resistance between transaxle vehicle harness connector pin 5, harness side and ground; and between transaxle vehicle harness connector pin 4, harness side and ground. Is the resistance greater than 10,000 ohms? YES : Go to B7 . NO : Go to B6 .
- B6 CHECK VEHICLE HARNESS FOR SHORT TO GROUND Disconnect: PCM Connector Measure the resistance between transaxle vehicle harness connector pin 5, harness side and ground; and between transaxle vehicle harness connector pin 4, harness side and ground. Is the resistance greater than 10,000 ohms? YES : INSTALL a new PCM. TEST the system for normal operation. NO : REPAIR the circuit. TEST the system for normal operation.
- B7 CHECK VEHICLE HARNESS FOR OPEN Measure the resistance between transaxle vehicle harness connector pin 5, harness side and PCM connector pin 29, harness side. Measure the resistance between transaxle vehicle harness connector pin 4, harness side and PCM connector pin 41, harness side. Is the resistance less than 5 ohms? YES : Go to B8 . NO : REPAIR the circuit. TEST the system for normal operation.
- B8 CHECK THE TRANSAXLE INTERNAL HARNESS FOR SHORT TO GROUND Measure the resistance between transaxle vehicle harness connector pin 5 (component side, transaxle internal harness), and ground; and between transaxle vehicle harness connector pin 4 (component side, transaxle internal harness), and ground. Is the resistance greater than 10,000 ohms? YES : Go to B9 . NO : INSTALL a new transaxle internal harness. TEST the system for normal operation.
- B9 CHECK THE TRANSAXLE INTERNAL HARNESS FOR AN OPEN Measure the resistance between transaxle vehicle harness connector pin 5 (component side, transaxle internal harness), and transmission fluid temperature sensor internal harness connector pin 5; and between transaxle vehicle harness connector pin 4 (component side, transaxle internal harness), and transmission fluid temperature sensor internal harness connector pin 4. Is the resistance less than 5 ohms? YES : Go to B10 . NO : INSTALL a new transaxle internal harness. TEST the system for normal operation.
- B10 CHECK RESISTANCE OF TFT SENSOR Measure the resistance between transaxle vehicle harness connector pin 5 (component side, transaxle internal harness), and transaxle vehicle harness connector pin 4 (component side, transaxle internal harness). Record the resistance. Resistance should be approximately in the following ranges: -20°C (-4°F) - 236-317 K ohms. 0°C (32°F) - 83.2-107 K ohms. 20°C (68°F) - 33.5-41.2 K ohms. 40°C (104°F) - 14.6-17.6 K ohms. 60°C (140°F) - 7.08-8.01 K ohms. 80°C (176°F) - 3.61-4.06 K ohms. 100°C (212°F) - 1.96-2.20 K ohms. 120°C (248°F) - 1.13-1.25 K ohms. 130°C (266°F) - 0.87-0.96 K ohms. Is the resistance in the range? YES : REFER to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) to diagnose an overheating concern. NO : INSTALL a new TFT sensor. TEST the system for normal operation.
PINPOINT TEST C: TRANSMISSION RANGE (TR) SENSOR
Note. Refer to the Transmission Range (TR) Sensor Connector illustration Transaxle Connector Layouts .
Note. Refer to the Transmission Range (TR) Sensor Diagnosis Chart Transaxle Connector Layouts .
Note. DTC P0705 may also be set from an open ground in the taillamp circuit. Check and repair taillamp circuit as necessary.
Scheme 23
Scheme 24
Scheme 25
- C1 VERIFY TR SENSOR ALIGNMENT Using a scan tool, view the TR_1, TR_2, TR_3 and TR_4 PIDs to determine if an internal fault is present in the transmission range (TR) sensor, refer to the Transmission Range (TR) Sensor Diagnostic PID Chart in «Transaxle Connector Layouts»(ref-278257-S24851871592008012400000) . If an electrical issue exists in the TR sensor electrical circuit, 2 or more binary positions will show 1's. EXAMPLE OF BINARY POSITION Range Selection PID Code Result Reverse or Drive 1100 (reverse and drive input detected) High probability of a tail lamp ground concern. Clean grounds. Drive or Manual 1 0101 (drive and manual 1 input detected) High probability of internal arcing inside the TR sensor. Verify TR sensor alignment. Is the TR sensor correctly aligned? YES : Go to C2 . NO : ADJUST the TR sensor. TEST the system for normal operation.
- C2 VERIFY SHIFT CABLE/LINKAGE ADJUSTMENT Verify that the shift cable/linkage is correctly adjusted. REFER to «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS»(ref-278265) article. Is the shift cable/linkage correctly adjusted? YES : Go to C3 . NO : ADJUST the shift cable/linkage REFER to «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS»(ref-278265) article. TEST the system for normal operation.
- C3 CHECK POWER SUPPLY TRANSAXLE CIRCUIT FOR AN OPEN Disconnect: TR Sensor Connector Key in ON position. Measure the voltage between TR sensor connector pin 1, harness side and ground. Is the voltage greater than 10 volts? YES : Go to C4 . NO : REPAIR power supply circuit 15 (GN/OG). TEST the system for normal operation.
- C4 CHECK TR SENSOR CIRCUITRY FOR SHORT TO POWER Select PARK. Key in ON position. Measure the voltage between TR sensor connector pins 2, 3, 4, 5, 7 and 8 harness side and ground. Is voltage present? YES : Go to C5 . NO : Go to C7 .
- C5 CHECK PCM FOR SHORT TO POWER Key in OFF position. Disconnect: PCM Connector Key in ON position. Measure the voltage between TR sensor connector pins 2, 3, 4, 5, 7 and 8 harness side and ground. Is voltage present? YES : REPAIR the circuit in question. TEST the system for normal operation. NO : INSTALL a new PCM. TEST the system for normal operation.
- C6 CHECK VEHICLE HARNESS FOR SHORT TO GROUND Key in OFF position. Disconnect: PCM Connector Disconnect: Fuse F2.50 (10A) Measure the resistance between TR sensor connector pins 2, 3, 4, 5, 7 and 8 harness side and ground. Is the resistance greater than 10,000 ohms? YES : INSTALL a new PCM. TEST the system for normal operation. NO : REPAIR the circuit in question. TEST the system for normal operation.
- C7 CHECK TR SENSOR CIRCUITRY FOR SHORT TO GROUND Key in OFF position. Connect: PCM Connector Disconnect: Fuse F2.50 (10A) Measure the resistance between TR sensor connector pins 2, 3, 4, 5, 7 and 8 harness side and ground. Is the resistance greater than 10,000 ohms? YES : Go to C8 . NO : Go to C6 .
- C8 CHECK THE TR SENSOR RESISTANCE Connect: Fuse F2.50 (10A) Measure the resistance between TR sensor connector pins, component side, as follows: PARK position, TR sensor pins 6 and 5, 8 and 9 less than 1,000 ohms. REVERSE position, TR sensor pins 1 and 4 less than 1,000 ohms. NEUTRAL position, TR sensor pins 1 and 8 less than 1,000 ohms. DRIVE position, TR sensor pins 1 and 2 less than 1,000 ohms. 2 position, TR sensor pins 1 and 7 less than 1,000 ohms. 1 position, TR sensor pins 1 and 3 less than 1,000 ohms. Are the resistances within the expected values? YES : INSTALL a new PCM. TEST the system for normal operation. NO : INSTALL a new TR sensor. TEST the system for normal operation.
PINPOINT TEST D: ELECTRONIC PRESSURE CONTROL SOLENOID (PCA)
Note. Refer to the Transaxle Vehicle Harness Connector illustration Transaxle Connector Layouts .
Note. Read and record all DTCs. All TR sensor and OSS DTCs must be repaired before entering Output State Control (OSC).
Scheme 26
Scheme 27
Scheme 28
Scheme 29
- D1 ELECTRONIC DIAGNOSTICS SET UP Key in OFF position. Shift selector lever to position "P". Check to make sure the transaxle harness connector is fully seated, terminals are fully engaged in the connector and in good condition before proceeding. Install 300 psi pressure gauge into line tap. Connect the diagnostic tool. Key in START position. Start and run the engine. Enter the following diagnostic mode on the diagnostic tool: Diagnostic Data Link Enter the following diagnostic mode on the diagnostic tool: PCM Enter the following diagnostic mode on the diagnostic tool: Active Command Modes Enter the following diagnostic mode on the diagnostic tool: Output State Control (OSC) Enter the following diagnostic mode on the diagnostic tool: Trans-Bench Mode Does the vehicle enter the Trans-Bench Mode? YES : REMAIN in Trans-Bench Mode. Go to D2 . NO : REPEAT procedure to ENTER Trans-Bench Mode. If vehicle did not enter OSC, REFER to «Introduction - Gasoline Engines»(ref-268480) article for diagnosis of PCM.
- D2 SOLENOID FUNCTIONAL TEST Monitor pressure gauge. Enter the following diagnostic mode on the diagnostic tool: Parameter; PCA Select PCA Increase engine speed above 1,500 RPM. Select value: 50, 70, 90, 110, 130 or 150 psi. Press "SEND". Select another value "50-150 psi". Press "SEND". Enter the following diagnostic mode on the diagnostic tool: XXX Press "SEND". Does the pressure reading match the commanded pressure? YES : CLEAR DTCs. TEST the system for normal operation. NO : Go to D3 .
- D3 CHECK VEHICLE HARNESS AND POWERTRAIN CONTROL MODULE FOR SHORT TO POWER Key in OFF position. Disconnect: Transaxle Vehicle Harness Connector Visually inspect all wires and connectors for damage. Key in ON position. Measure the voltage between transaxle vehicle harness connector pin 7, harness side and ground; and between transaxle vehicle harness connector pin 2, harness side and ground. Is voltage present? YES : Go to D4 . NO : Go to D5 .
- D4 CHECK VEHICLE HARNESS FOR SHORT TO POWER Key in OFF position. Disconnect: PCM Connector Key in ON position. Measure the voltage between transaxle vehicle harness connector pin 7, harness side and ground; and between transaxle vehicle harness connector pin 2, harness side and ground. Is voltage present? YES : REPAIR the circuit. TEST the system for normal operation. NO : INSTALL a new PCM. TEST the system for normal operation.
- D5 CHECK ELECTRICAL SIGNAL Measure the voltage between transaxle vehicle harness connector pin 7, harness side and transaxle vehicle harness connector pin 2, harness side. Activate solenoids (ON and OFF) while monitoring the voltage reading. Enter the following diagnostic mode on the diagnostic tool: Trans-Bench Mode Enter the following diagnostic mode on the diagnostic tool: Parameter; PCA Select a value "50-150 psi". Press "SEND". Select another value "50-150 psi". Press "SEND". Enter the following diagnostic mode on the diagnostic tool: XXX Press "SEND". Does the voltage change? YES : Go to D6 . NO : CHECK for open or short circuit in harness or PCM.
- D6 CHECK THE TRANSAXLE INTERNAL HARNESS FOR SHORT TO GROUND Key in OFF position. Disconnect: PCA Solenoid Electrical Connector Measure the resistance between transaxle vehicle harness connector pin 2 (component side, transaxle internal harness), and ground; and between transaxle vehicle harness connector pin 7 (component side, transaxle internal harness), and ground. Is the resistance greater than 10,000 ohms? YES : Go to D7 . NO : INSTALL a new transaxle internal harness. TEST the system for normal operation.
- D7 CHECK THE TRANSAXLE INTERNAL HARNESS FOR AN OPEN Measure the resistance between transaxle vehicle harness connector pin 2 (component side, transaxle internal harness), and transaxle internal harness connector pin 2; and between transaxle vehicle harness connector pin 7 (component side, transaxle internal harness), and transaxle internal harness connector pin 7. Is the resistance less than 5 ohms? YES : Go to D8 . NO : INSTALL a new transaxle internal harness. TEST the system for normal operation.
- D8 CHECK SOLENOID RESISTANCE AT SOLENOID Key in OFF position. Measure and record the resistance between PCA solenoid pins. Is the resistance between 2.4 and 7.3 ohms? YES : Go to D9 . NO : INSTALL a new PCA solenoid. TEST the system for normal operation.
- D9 CHECK SOLENOID FOR SHORT TO GROUND Measure and record the resistance between the PCA solenoid and the solenoid body. Is the resistance greater than 10,000 ohms? YES : REFER to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) for diagnosis of pressure concerns. TEST the system for normal operation. NO : INSTALL a new PCA solenoid. TEST the system for normal operation.
PINPOINT TEST E: TURBINE SHAFT SPEED (TSS) SENSOR AND OUTPUT SHAFT SPEED (OSS) SENSOR
Note. Refer to the turbine shaft speed (TSS) sensor and output shaft speed (OSS) sensor connector illustrations Transaxle Connector Layouts .
Scheme 30
Scheme 31
Scheme 32
Scheme 33
Scheme 34
Scheme 35
- E1 ELECTRONIC DIAGNOSTICS SET UP Check to make sure the transaxle harness connectors are fully seated, terminals are fully engaged in the connector and in good condition before proceeding. Connect the diagnostic tool. Key in ON position. Enter the following diagnostic mode on the diagnostic tool: Diagnostic Data Link Enter the following diagnostic mode on the diagnostic tool: PCM Select Trans Priority. Select PID/Data Monitor and Record. Select the following PIDs: TSS or OSS. Does vehicle enter PID/Data Monitor and Record? YES : REMAIN in PID/Data. Go to E2 . NO : REPEAT procedure to ENTER PID. If vehicle did not enter PID, REFER to the «Introduction - Gasoline Engines»(ref-268480) article for diagnosis of PCM.
- E2 DRIVE CYCLE TEST While monitoring the appropriate sensor PID, drive the vehicle so that the transaxle upshifts and downshifts through all gears. Does the TSS or OSS Speed PID increase and decrease with engine and vehicle speed? YES : Go to E3 . NO : If the TSS or OSS Speed PID does not increase and decrease with engine and vehicle speed, INSPECT for open or short in vehicle harness, sensor, a PCM concern or internal hardware concern. Go to E4 .
- E3 DRIVE CYCLE TEST ERRATIC While monitoring the appropriate sensor PID, drive the vehicle so that the transaxle upshifts and downshifts through all gears. Is the TSS or OSS Speed PID signal erratic (drop to zero or near zero and return to normal operation)? YES : If the sensor signal is erratic, INSPECT for intermittent concern in the harness, sensor or connector. Go to E4 . NO : CLEAR all DTCs. Rerun OBD.
- E4 CHECK THE VEHICLE WIRING HARNESS FOR A SHORT TO POWER Key in OFF position. Disconnect: TSS or OSS Sensor Connector Disconnect: PCM Connector C175t Key in ON position. Measure the voltage between TSS/OSS sensor connector pin 1, harness side and ground; and between TSS/OSS sensor connector pin 2, harness side and ground. Is there any voltage? YES : REPAIR the circuit in question. TEST the system for normal operation. NO : Go to E5 .
- E5 CHECK THE VEHICLE WIRING HARNESS FOR A SHORT TO GROUND Key in OFF position. Measure the resistance between TSS/OSS sensor connector pin 1, harness side and ground; and between TSS/OSS sensor connector pin 2, harness side and ground. Is the resistance greater than 10,000 ohms? YES : Go to E6 . NO : REPAIR the circuit in question. TEST the system for normal operation.
- E6 CHECK THE VEHICLE WIRING HARNESS FOR AN OPEN CIRCUIT Key in OFF position. For TSS, measure the resistance between TSS sensor connector pin 1, harness side and PCM connector C175t pin 15; and between TSS sensor connector pin 2, harness side and PCM connector C175t pin 41. For OSS, measure the resistance between OSS connector pin 1, harness side and PCM connector C175t pin 6; and between OSS connector pin 2, harness side and PCM connector C175t pin 7. Is the resistance less than 5 ohms? YES : Go to E7 . NO : REPAIR the circuit in question. TEST the system for normal operation.
- E7 CHECK RESISTANCE OF TSS SENSOR OR OSS. For TSS sensor, measure the resistance between TSS sensor connector pin 1, component side and TSS sensor connector pin 2, component side. For OSS, measure the resistance between OSS connector pin 1, component side and OSS connector pin 2, component side. Record the resistance. Resistance should be as follows: OSS 675-775 ohms at -20°C (-4°F). OSS 800- 920 ohms at 21°C (70°F). OSS 1210-1390 ohms at 160°C (302°F). TSS 273-333 ohms at -20°C (-4°F). TSS 330-390 ohms at 21°C (70°F). TSS 487-601 ohms at 160°C (302°F). Is the resistance within specification for the appropriate sensor? YES : Go to E8 . NO : INSTALL a new sensor. TEST the system for normal operation.
- E8 CHECK SENSORS FOR SHORT TO GROUND For TSS sensor, measure the resistance between TSS sensor connector pin 1, component side and ground. For OSS, measure the resistance between OSS connector pin 1, component side and ground. Is the resistance greater than 10,000 ohms? YES : INSTALL a new PCM. TEST the system for normal operation. If the condition still exists, refer to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) for diagnosis of shift or torque converter concerns. NO : INSTALL a new TSS or OSS sensor. TEST the system for normal operation. If the condition still exists, refer to «Diagnosis By Symptom»(ref-278257-S14289017952008012400000) for diagnosis of shift or torque converter concerns.
Special Testing Procedures
Special Tools Illustration Tool Name Tool Number Air Test Plate and Gasket 307-412 Hydraulic Pressure Gauge 307-132 (17-014)
The special tests are designed to aid the technician in diagnosing the hydraulic and mechanical portion of the transaxle.
Line Pressure Test
| CAUTION | Carry out the Line Pressure Test prior to carrying out the Stall Speed Test. If line pressure is low at stall, do not carry out the Stall Speed Test or further transaxle damage will occur. Do not maintain wide open throttle in any gear range for more than 5 seconds. |
Note. Certain sensor failures may cause high PC, FMEM (Failure Mode Effect Management) actions. Make sure that self-test and electrical repairs have been carried out, or test results may be incorrect.
This test verifies that the line pressure is within specifications.
- Connect pressure gauge to the line pressure tap.
- Start engine and check line pressures. Refer to the «LINE PRESSURE CHART»(ref-278257-S28086299092008012400000) to determine if line pressure is within specifications.
- If line pressure is not within specification, refer to «LINE PRESSURE DIAGNOSIS CHART»(ref-278257-S07676965432008012400000) for line pressure concern causes.
Scheme 36
| Item | Part Number | Description |
|---|---|---|
| 1 | W701515-S309 | Line pressure tap |
| Trans. | Range | Idle | Stall | ||
|---|---|---|---|---|---|
| 4F27E | P, N | 345-450 kPa | 50-65 psi | N/A | N/A |
| R | 450-585 kPa | 65-85 psi | 1,930-2,310 kPa | 280-335 psi | |
| D, 2, 1 | 345-450 kPa | 50-65 psi | 1,240-1,450 kPa | 180-210 psi | |
LINE PRESSURE CHART
| Test Results | Possible Source |
|---|---|
| Low pressure in all ranges | Worn pump. |
| Low pressure in all ranges | Fluid leaking from pump, main control valve body or transaxle case. |
| Low pressure in all ranges | Pressure control solenoid inoperative. |
| Low pressure in all ranges | Solenoid regulating valve sticking. |
| Low pressure in D, 2, 1 only | Fluid leaking from forward clutch hydraulic circuit. |
| Low pressure in 2 | Fluid leaking from intermediate/overdrive band hydraulic circuit. |
| Low pressure in 1, R only | Fluid leaking from low/reverse clutch hydraulic circuit. |
| Low in R only | Fluid leaking from reverse clutch hydraulic circuit. |
| High pressure in all ranges | Pressure control solenoid inoperative or open wire harness. |
| High pressure in all ranges | Pressure regulator valve sticking. |
| High pressure in all ranges | PCM inoperative. |
LINE PRESSURE DIAGNOSIS CHART
Stall Speed Test
This test checks operation of the following items
- Torque converter clutch
- Forward clutch
- Low one way clutch assembly
- Engine performance
| WARNING | Apply the parking brake firmly while carrying out each stall test. |
| CAUTION | Always carry out the Line Pressure Test procedures prior to carrying out the Stall Speed Test. If line pressure is low at stall, do not carry out the Stall Speed Test or further transaxle damage will occur. |
Note. The Stall Speed Test should be carried out with the engine and transaxle at normal operating temperatures.
- Connect tachometer to the engine.
- Press accelerator pedal to floor (WOT) in each range. Record RPM reached in each range. Stall speeds should be as follows: STALL SPEED CHART Engine RPM All 2,200-2,700
- If stall speeds were too high, refer to the «STALL SPEED DIAGNOSIS CHART»(ref-278257-S10583284322008012400000) . If stall speeds were too low, first check the engine idle speed. If engine idle is OK, remove torque converter and check the torque converter one-way clutch for slippage.
| Transaxle Range Selector Lever Position | Possible Cause |
|---|---|
| Above specification in D, 2 and 1 | Forward clutch slipping. |
| Above specification in 2 | Intermediate/overdrive band slipping. |
| Above specification in 1 and R | Low/reverse clutch slipping. |
| Above specification in R | Reverse clutch slipping. |
| Above specification in R | Carry out road test to determine whether problem is in low/reverse clutch. |
| Above specification in R | Low/reverse clutch is defective. |
STALL SPEED DIAGNOSIS CHART
Scheme 37
| Item | Part Number | Description |
|---|---|---|
| 1 | Servo release | |
| 2 | Servo apply | |
| 3 | Direct clutch apply | |
| 4 | Reverse clutch apply | |
| 5 | Torque converter bypass | |
| 6 | Low/reverse clutch | |
| 7 | Torque converter charge | |
| 8 | Forward clutch apply | |
| 9 | Servo accumulator apply | |
| 10 | Forward servo accumulator apply |
A no-drive condition can exist even with correct transaxle fluid pressure because of inoperative clutches or bands. An erratic shift can be located through a series of checks by substituting air pressure for fluid pressure to determine the location of the failure.
Follow the procedure to determine the location of the inoperative clutch or band by introducing air pressure into the various test plate passages.
Note. Use only dry, regulated 3 bar maximum air pressure.
Apply air to the appropriate passage(s). A dull thud should be felt or heard or movement should be observed when the component applies. There should be no hissing sound when the component is fully applied.
- Drain transaxle fluid and remove the transaxle fluid pan.
- Remove the main control valve body. Refer to «Main Control»(ref-278257-S42604515392008012400000).
- Install the transmission test plate and gasket. Use the transmission fluid pan bolts to hold the test plate down. Tighten the bolts to 10 Nm (89 lb-in).
- Apply air to the appropriate clutch port (Scheme 31) A dull thud may be heard or movement felt when the component is applied or released. If clutch seals or check balls are leaking, a hissing sound may be heard.
Leakage Inspection
Special Tools Illustration Tool Name Tool Number 100W/12 Volt DC UV Lamp 164-R0751
| Item | Specification |
|---|---|
| MERCON® V Automatic Transmission Fluid XT-5-QM (or XT-5-QMC) (US); CXT-5-LM12 (Canada) | MERCON® V |
| Automatic Transmission/Power Steering Dye 164-R3701 or equivalent |
Material
| CAUTION | Do not try to stop the fluid leak by increasing the torque beyond specifications. This may cause damage to the case threads. |
Check the fluid filler tube at the transaxle case. If leakage is found here, install a new plug.
Check fluid tubes and fittings between the transaxle and the cooler for looseness, wear or damage. If leakage cannot be stopped by tightening a fluid tube nut, install new parts.
If the leak continues, install a new cooler line fitting and tighten to specification. The same procedure should be followed for fluid leaks between the cooler and the cooler line fittings. Refer to TRANSAXLE/TRANSMISSION COOLING article.
The cooler can be further checked for leaks. Refer to TRANSAXLE/TRANSMISSION COOLING article.
If leakage is found at the transaxle range selector lever, install a new seal.
If leakage is found at the transaxle harness connector, install a new O-ring.
The transaxle has the following parts to prevent external fluid leakage
- Sealer
- Lip-type seals
- O-ring seals
- Seal rings
- Seal grommets
- Thread sealant
- Pan fluid
Scheme 38
| Item | Part Number | Description |
|---|---|---|
| 1 | W706315-S300 | O-ring - Output shaft speed (OSS) sensor |
| 2 | Converter housing (sealant-to-case) | |
| 3 | 7A248 | Seal - Fluid pump |
| 4 | 7A248 | Seal - Pump fluid |
| 5 | Case (sealant-to-converter housing) | |
| 6 | W706316-S300 | O-ring - Turbine shaft speed (TSS) sensor |
| 7 | 1177 | Seal assembly - Differential |
| 8 | O-ring - Bulkhead wiring connector | |
| 9 | 7222 | Cover assembly - End (sealant-to-case) |
| 10 | 7R284 | Seals - Case cover (2 end cover-to-case) |
| 11 | 7B498 | Seals - Manual shaft - Fluid (2 required) |
| 12 | Pan - Fluid (sealant-to-case) |
Leak Check Test
- Original factory fill fluid is dyed red to aid in determining if leakage is from the engine or transaxle. The red color should assist in pinpointing the leak.
- Clean off any fluid from the top and bottom of the torque converter housing, the case and the rear face of the engine and oil pan. Clean the torque converter area by washing with a suitable nonflammable solvent and blow dry with compressed air.
- Wash out the torque converter housing, and the front of the flexplate. The torque converter housing may be washed out using cleaning solvent and a squirt-type oil can. Blow all washed areas dry with compressed air.
- Start and run the engine until the transaxle reaches its normal operating temperature. Observe the back of the cylinder block and the top of the torque converter housing for evidence of fluid leakage. Raise the vehicle on a hoist; refer to «JACKING AND LIFTING»(ref-278237) article and run the engine at fast idle, then at engine idle, occasionally shifting to the D and R positions to increase pressure within the transaxle. Observe the front of the flexplate, back of the cylinder block (in as far as possible), and inside the torque converter housing and front of the case. Run the engine until fluid leakage is evident and the probable source of leakage can be determined.
Leak Check Test With Black Light
Automatic Transmission/Power Steering Dye 164-R3701 or equivalent (specifically formulated for ATF) is used to detect a transmission fluid leak.
- Add Automatic Transmission/Power Steering Dye to the transmission fluid. Use one 30.0 mL (1 oz) of dye solution for every 3.8L (4 qt.) of transmission fluid.
- Start and run the engine until the transaxle reaches its normal operating temperature. Observe the back of the cylinder block and top of the torque converter housing for evidence of fluid leakage. Raise the vehicle on a hoist and run the engine at fast idle, occasionally shifting to the DRIVE and REVERSE ranges to increase pressure within the transaxle. Observe the front of the flexplate, back of the cylinder block (in as far as possible), inside the torque converter housing and the entire case until fluid leakage is evident and the probable source of leakage can be determined.
Transmission Fluid Cooler Flow Test
Note. The selector lever linkage adjustment, transmission fluid level and line pressure must be within specification before carrying out this test. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article for selector lever linkage adjustment procedure. For transmission fluid level checking procedures, refer to Preliminary Inspection . For transaxle line pressure testing, refer to Special Testing Procedures .
- Check the transmission fluid level and fill as necessary.
- Remove the transmission fluid level indicator from the transmission fluid filler tube and install the funnel in the transmission fluid filler tube.
- With the vehicle in NEUTRAL, position it on a hoist. Refer to «JACKING AND LIFTING»(ref-278237) article. Inspect the transmission fluid cooler tubes for damage. Install new transmission fluid cooler tubes as needed.
- Disconnect the transmission fluid cooler return hose from the transmission fluid cooler return tube.
- Plug the transmission fluid cooler return hose to avoid transmission fluid loss.
- Connect one end of a hose to the cooler return tube and route the other end of the hose up to a point where it can be inserted into the funnel at the transmission fluid filler tube.
- Start the engine and run at idle with the transaxle in NEUTRAL range until the transmission fluid is warm. Temperature is important to the flow rate measurement. Once the transmission fluid flow no longer has air bubbles in it, remove the rubber hose from the funnel and insert it into a liter container. As soon as 0.95L (1 qt) is dispensed into the container, install the hose into the funnel. One quart of transmission fluid should flow through the cooling system in approximately 17-21 seconds.
- Once adequate flow is determined, shut off the engine, remove the extension hose and reassemble the cooler tubes with the constant tension clamp.
- If flow is not adequate, stop the engine. Disconnect the hose from the transmission fluid cooler return tube and connect it to the converter-out tube. If flow is now liberal, install a new transmission fluid cooler. Refer to «TRANSAXLE/TRANSMISSION COOLING»(ref-278310) article.
- Check the transmission fluid level and adjust as required.
Diagnosis By Symptom
Special Tools Illustration Tool Name Tool Number Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool
The Diagnosis by Symptom Index gives the technician diagnostic information, direction and suggest possible components, using a symptom as a starting point.
The Diagnosis by Symptom Index is divided into 2 categories: Electrical Routines, indicated by 200 series numbers; and Hydraulic/Mechanical Routines, indicated by 300 series numbers. The Electrical Routines list the possible electrical components that could cause or contribute to the symptom described. The Hydraulic/Mechanical Routines list the possible hydraulic or mechanical components that could cause or contribute to the symptom described.
Diagnosis by Symptom Index Directions
- Using the Diagnosis by Symptom Index, select the Concern/Symptom that best describes the condition.
- Refer to the routine indicated in the «Diagnosis by Symptom Index»(ref-278257-S02953668492008012400000) .
- Always begin diagnosis of a symptom with: Preliminary inspections. Verifications of condition. Checking the transmission fluid levels.
- Begin with the Electrical Routine, if indicated. Follow the reference or action statements. Always carry out the on-board diagnostic tests as necessary. Never skip steps. If the concern is still present after electrical diagnosis, then proceed to the Hydraulic/Mechanical Routines list.
- The Hydraulic/Mechanical Routines list possible hydraulic or mechanical components that could cause the concern. These components are listed in the removal sequence and by most probable cause. All components listed must be inspected to make sure of correct repair.
Diagnosis by Symptom Index
| Title | Routines | |
|---|---|---|
| Electrical a | Hydraulic/ Mechanical | |
| Engagement Concerns | ||
| No forward in O/D only | 201A | 301A |
| No forward in O/D only (all positions) | 201B | 301B |
| No reverses only | 202 | 302 |
| Harsh reverse only | 203 | 303 |
| Harsh reverse only | 204A | 304A |
| Harsh manual 1st gear only | 204B | 304B |
| Delayed/soft reverse only | 205 | 305 |
| Delayed/soft forward only | 206 | 306 |
| No forward and no reverse | 207 | 307 |
| Harsh forward and harsh reverse | 208 | 308 |
| Delayed forward and delayed reverse | 209 | 309 |
| Shift Concerns | ||
| Some/all shifts missing | 210 | 310 |
| Timing concern: early concern (some/all) | 211 | 311 |
| Timing concern: erratic/hunting (some/all) | 212 | 312 |
| Feel concerns: soft/slipping (some/all) | 213 | 313 |
| Feel concerns: harsh (some/all) | 214 | 314 |
| No 1st gear in drive, engages in a higher gear | 215 | 315 |
| No 1st gear in manual 1st | 216 | 316 |
| No manual 2nd gear | 217 | 317 |
| Torque Converter Clutch Operation Concerns | ||
| Does not apply | 240 | 340 |
| Always applied/stalls vehicle | 241 | 341 |
| Cycling/shudder/chatter | 242 | 342 |
| Other Concerns | ||
| Selector lever efforts high | 251 | 351 |
| External leaks | 252 | 352 |
| Vehicle driveability concerns | 253 | 353 |
| Noise/Vibration and Harshness (NVH) - forward or reverse | 254 | 354 |
| Engine will not crank | 255 | 355 |
| No park range | 256 | 356 |
| Overheating | 257 | 357 |
| No engine braking in manual 1st | 259 | 359 |
| Fluid venting or foaming | 261 | 361 |
| Slips/chatters in manual 1st gear | 263 | 363 |
| Slips/chatters in manual 2nd gear | 264 | 364 |
| Slips/chatters in 3rd gear | 282 | 382 |
| No engine braking in all gears | 283 | 383 |
a Carry out electrical routines first.
Diagnostic Routines
| Possible Component | Reference/Action | |
|---|---|---|
| 201A - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, shift solenoid (SSC) (off = low) | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 301A - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Case | ||
| Damaged | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: NO FORWARD IN O/D ONLY
| Possible Component | Reference/Action | |
|---|---|---|
| 201B - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, SSC, SSD, and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 301B - HYDRAULIC/MECHANICAL ROUTINE | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing install new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Forward Planetary Assembly | ||
| Planetary damaged | Inspect for damage. Repair as necessary. | |
| Low One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: NO FORWARD ONLY (ALL POSITIONS)
| Possible Component | Reference/Action | |
|---|---|---|
| 202 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, SSC, SSD and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test D . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 302 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Low/Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: NO REVERSE
| Possible Component | Reference/Action | |
|---|---|---|
| 203 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 303 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High pressures | Check pressure at line tap. | |
| Carry out the Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specification. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Low/Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return spring damaged | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: HARSH REVERSE ONLY
| Possible Component | Reference/Action | |
|---|---|---|
| 204A - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 304A - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High pressures | Check pressure at line tap. Refer to Special Testing Procedures . | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: HARSH FORWARD ONLY
| Possible Component | Reference/Action | |
|---|---|---|
| 204B - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, turbine shaft speed (TSS) sensor | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 304B - HYDRAULIC/MECHANICAL ROUTINE | ||
| No Hydraulic/Mechanical Concerns. | ||
ENGAGEMENT CONCERN: HARSH FORWARD ONLY
| Possible Component | Reference/Action | |
|---|---|---|
| 205 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, SSD, pressure control solenoid (PCA) | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 305 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| Low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Low/Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: DELAYED/SOFT REVERSE ONLY
| Possible Component | Reference/Action | |
|---|---|---|
| 206 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harness, SSC, PCA | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 306 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| Low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERN: DELAYED/SOFT FORWARD
| Possible Component | Reference/Action | |
|---|---|---|
| 207 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM and vehicle wiring harnesses (no electrical activity equals 3rd gear default) | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 307 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Selector Lever Cable/Transmission Range (TR) Sensor | ||
| Selector Lever Cable system or TR sensor damaged, misaligned | Inspect and repair as required. For selector lever cable information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. For TR sensor information, refer to Transmission Range (TR) Sensor . | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Turbine Shaft | ||
| Damaged | Inspect for damage. If damaged, repair as necessary. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. Repair as necessary. | |
| Rear Planetary Assembly | ||
| Planetary damaged | Inspect for damage. If damaged, repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Forward Planetary Assembly | ||
| Planetary damaged | Inspect for damage. If damaged, repair as necessary. | |
| Final Drive Gearset and Differential | ||
| Damaged | Inspect for damage. If damaged, repair as necessary. | |
| Torque Converter | ||
| Damaged flexplate or adapter plate | Inspect for damage. Carry out Torque Converter checks, refer to Torque Converter Contamination Inspection . Repair as necessary. | |
| Damaged impeller hub | Inspect for damage. Repair as necessary. | |
| Damaged turbine hub | ||
| Low One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERNS: NO FORWARD AND NO REVERSE
| Possible Component | Reference/Action | |
|---|---|---|
| 208 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, transmission fluid temperature (TFT) sensor, SSC and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B and Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 308 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Reverse and Low/Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| One-way clutch | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERNS: HARSH FORWARD AND REVERSE
| Possible Component | Reference/Action | |
|---|---|---|
| 209 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, TFT sensor SSC and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B and Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 309 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. Repair as necessary. | |
ENGAGEMENT CONCERNS: DELAYED/SOFT FORWARD AND REVERSE
| Possible Component | Reference/Action | |
|---|---|---|
| 210 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, intake manifold air temperature (IAT) sensor, vehicle speed sensor (VSS) input, SSA, SSB, SSC, SSD SSE and pressure control solenoid (PCA) | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test C , go to Pinpoint Test D and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 310 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Some Shifts Missing ONLY | ||
| If only some of the shifts are missing, determine which shift(s) is missing. | ||
| Refer to the following routine(s) for further no shift concerns: No 1-2 Shift, see routine 220/320 No 2-3 Shift, see routine 221/321 No 3-4 Shift, see routine 222/322 No 4-3 Shift, see routine 223/323 No 3-2 Shift, see routine 224/324 No 2-1 Shift, see routine 225/325 | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition. | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Selector Lever Cable/TR Sensor | ||
| Selector lever cable system or TR sensor damaged, misaligned | Inspect and repair as required. For selector lever cable information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. For TR sensor information, refer to Transmission Range (TR) Sensor . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. Repair as necessary. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Servo retaining ring damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERNS: SOME/ALL SHIFTS MISSING (AUTOMATIC MODE ONLY)
| Possible Component | Reference/Action | |
|---|---|---|
| 211 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, VSS, TSS sensor SSA, SSB, SSC, SSD, SSE and VFS | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM and TSS sensor. | |
| Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 311 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Some Shifts Early/Late ONLY | ||
| If only some of the shifts are early/late, determine which shift(s) is early/late. | ||
| Refer to the following routine(s) for further early/late shift concerns: Soft/Slipping 1-2 Shift, see Routine 226/326 Soft/Slipping 2-3 Shift, see Routine 227/327 Soft/Slipping 3-4 Shift, see Routine 228/328 Soft/Slipping 4-3 Shift, see Routine 229/329 Soft/Slipping 3-2 Shift, see Routine 230/330 Soft/Slipping 2-1 Shift, see Routine 231/331 | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Servo retaining ring damaged | Inspect for damage. Repair as necessary. | |
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERNS: TIMING CONCERNS - EARLY/LATE
| Possible Component | Reference/Action | |
|---|---|---|
| 212 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, VSS, IAT sensor | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM and TSS sensor. | |
| Go to Pinpoint Test E . Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 312 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Further Diagnosis | ||
| For further diagnosis of timing issues, refer to Reference/Actions | Refer to the following routine(s) for specific shift diagnosis: No. 1-2 Shift, see Routine 220/330 No. 2-3 Shift, see Routine 221/331 No. 3-4 Shift, see Routine 222/332 No. 4-3 Shift, see Routine 223/323 No. 3-2 Shift, see Routine 224/324 No. 2-1 Shift, see Routine 225/325 Soft/Slip 1-2 Shift, see Routine 226/326 Soft/Slip 2-3 Shift, see Routine 227/327 Soft/Slip 3-4 Shift, see Routine 228/328 Soft/Slip 4-3 Shift, see Routine 229/329 Soft/Slip 3-2 Shift, see Routine 230/330 Soft/Slip 2-1 Shift, see Routine 231/331 Harsh 1-2 Shift, see Routine 232/332 Harsh 2-3 Shift, see Routine 233/333 Harsh 3-4 Shift, see Routine 224/334 Harsh 4-3 Shift, see Routine 235/335 Harsh 3-2 Shift, see Routine 236/336 Harsh 2-1 Shift, see Routine 237/337 | |
SHIFT CONCERNS: TIMING CONCERNS - ERRATIC/HUNTING
| Possible Component | Reference/Action | |
|---|---|---|
| 213 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TFT sensor, IAT sensor, VSS input SSA, SSB, SSC, SSD, SSE, VFS and PCA | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM, IAT sensor and VSS. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test D and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 313 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Some Shifts Soft/Slipping ONLY | ||
| If only some of the shifts are soft/slipping, determine which shift(s) is soft/slipping. | ||
| Refer to the following routine(s) for further soft/slipping shift concerns: Soft/Slipping 1-2 Shift, see Routine 226/326 Soft/Slipping 2-3 Shift, see Routine 227/327 Soft/Slipping 3-4 Shift, see Routine 228/328 Soft/Slipping 4-3 Shift, see Routine 229/329 Soft/Slipping 3-2 Shift, see Routine 230/330 Soft/Slipping 2-1 Shift, see Routine 231/331 | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. Carry out Line Pressure Test. Refer to Special Testing Procedures . | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. Repair as necessary. | |
| Intermediate Servo | ||
| Servo retaining ring damaged | Inspect for damage. Repair as necessary. | |
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Intermediate Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Case | ||
| Damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERNS: FEEL - SOFT/SLIPPING
| Possible Component | Reference/Action | |
|---|---|---|
| 214 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor , TFT sensor, IAT sensor, VSS input, SSA, SSB, SSC, SSD, SSE and PCA | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM, IAT sensor and VSS. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test C , go to Pinpoint Test D and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 314 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Some Shifts Harsh ONLY | ||
| If only some of the shifts are harsh, determine which shift(s) is harsh. | ||
| Refer to the following routine(s) for further harsh shift concerns: Harsh 1-2 Shift, see Routine 232/332 Harsh 2-3 Shift, see Routine 233/333 Harsh 3-4 Shift, see Routine 234/334 Harsh 4-3 Shift, see Routine 235/335 Harsh 3-2 Shift, see Routine 236/336 Harsh 2-1 Shift, see Routine 237/337 | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Input Shaft | ||
| Damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Servo retaining ring damaged | Inspect for damage. Repair as necessary. | |
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Final Drive Gears and Differential | ||
| Damaged | Inspect for damage. Repair as necessary. | |
| Case | ||
| Damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERNS: FEEL - HARSH (SOME/ALL)
| Possible Component | Reference/Action | |
|---|---|---|
| 215 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 315 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Refer to the Band/Clutch Chart in specification to determine which gears are on. Follow the diagnostic routines to repair the missing gears. | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Low One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
SHIFT CONCERNS: NO 1ST GEAR IN DRIVE, ENGAGES IN HIGHER GEAR
| Possible Component | Reference/Action | |
|---|---|---|
| 216 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM and vehicle wiring harnesses | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 316 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Refer to the Band/Clutch Chart in specification to determine which gears are on. Follow the diagnostic routines to repair the missing gears. | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Low/Reverse Clutch Assembly | ||
| Seals | Inspect for damage. If damaged, repair as necessary. | |
| Friction plates | Inspect for damage. Repair as necessary. | |
| Return spring | Inspect for damage. Repair as necessary. | |
| OD Planetary Assembly | ||
| Planetary damaged | Inspect for damage. If damaged, repair as necessary. | |
SHIFT CONCERNS: NO 1ST GEAR IN MANUAL 1ST
| Possible Component | Reference/Action | |
|---|---|---|
| 217 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 317 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Servo retaining ring damaged | Inspect for damage. Repair as necessary. | |
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Low/Direct One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
SHIFT CONCERNS: NO MANUAL 2ND GEAR
| Possible Component | Reference/Action | |
|---|---|---|
| 220 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, VSS, TR sensor, TSS sensor and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM, IAT sensor and VSS. | |
| Go to Pinpoint Test A , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 320 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| OD Planetary Assembly | ||
| Planetary damaged | Inspect for damage. If damaged, repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: NO 1-2 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 221 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, VSS, SSD and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 321 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals | Inspect for damage. Repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Intermediate Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: NO 2-3 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 222 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, VSS, SSC and SSA | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 322 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Band | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: NO 3-4 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 223 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, VSS, SSA, and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 323 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seal | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: NO 4-3 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 224 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, VSS and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test C and Go to Pinpoint Test E | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 324 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: NO 3-2 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 225 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, VSS and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test | ||
| 325 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| One-Way Clutch | ||
| Damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: NO 2-1 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 226 - ELECTRICAL ROUTINE | ||
| Incorrect Pressures | ||
| PCM, vehicle wiring harnesses, TSS sensor, VSS, TFT sensor and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM, IAT sensor and VSS. | |
| Go to Pinpoint Test A , go to Pinpoint Test B and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 326 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: SOFT/SLIPPING 1-2
| Possible Component | Reference/Action | |
|---|---|---|
| 227 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TSS sensor, TFT sensor, and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 327 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: SOFT/SLIPPING 2-3
| Possible Component | Reference/Action | |
|---|---|---|
| 228 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, SSA, SSC, vehicle wiring harnesses and TFT sensor | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test B . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 328 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly. | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: SOFT/SLIPPING 3-4
| Possible Component | Reference/Action | |
|---|---|---|
| 229 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TFT sensor, SSA and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test B . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 329 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . Follow pressure diagnosis and repair as required. | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: SOFT/SLIPPING 4-3
| Possible Component | Reference/Action | |
|---|---|---|
| 230 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TFT sensor and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test B . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 330 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: SOFT/SLIPPING 3-2
| Possible Component | Reference/Action | |
|---|---|---|
| 231 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, SSD, VSS, TSS, TR sensor, vehicle wiring harnesses and TFT sensor | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Carry out Pinpoint Tests. Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 331 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly. | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: SOFT/SLIPPING 2-1
| Possible Component | Reference/Action | |
|---|---|---|
| 232 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TSS sensor, TR sensor, TFT sensor and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 332 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly. | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: HARSH 1-2 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 233 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TSS sensor, TR sensor, TFT sensor and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 333 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: HARSH 2-3 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 234 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, TFT sensor, SSA and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B and Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 334 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . Follow pressure diagnosis and repair as required. | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: HARSH 3-4 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 235 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TR sensor, TFT sensor, SSA and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B and Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 335 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly. | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: HARSH 4-3 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 236 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TSS sensor, TR sensor, TFT sensor and SSE | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 336 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
| Direct Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: HARSH 3-2 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 237 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TSS sensor, TR sensor, TFT sensor, VFS and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test C and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 337 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. Repair as necessary. | |
| Not adjusted correctly | Adjust correctly. | |
| Anchor bolt damaged or worn | Inspect for damage. Repair as necessary. | |
SHIFT CONCERN: HARSH 2-1 SHIFT
| Possible Component | Reference/Action | |
|---|---|---|
| 240 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TFT sensor, SSB and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test B . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 340 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Torque Converter Assembly | ||
| Torque converter internal failure preventing engagement, piston application | Remove transaxle. Inspect for damage. Carry out torque converter checks, refer to Torque Converter Contamination Inspection . | |
| If torque converter fails to pass the checks or is damaged, install a new or remanufactured torque converter. | ||
TORQUE CONVERTER CLUTCH OPERATION CONCERNS: DOES NOT APPLY
| Possible Component | Reference/Action | |
|---|---|---|
| 241 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, SSC and SSB | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 341 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Low One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
| Torque Converter Assembly | ||
| Torque converter internal failure preventing engagement, piston application | Remove transaxle. Inspect for damage. Carry out torque converter checks, refer to Torque Converter Contamination Inspection . | |
| If torque converter fails to pass the checks or is damaged, install a new or remanufactured torque converter. | ||
TORQUE CONVERTER OPERATION CONCERNS: ALWAYS APPLIED/STALLS VEHICLE
| Possible Component | Reference/Action | |
|---|---|---|
| 242 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, SSB and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 342 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Condition | Carry out Fluid Condition Check. Refer to Preliminary Inspection . | |
| Contaminate | If contaminated, locate source of contamination. If burnt, inspect mechanical bands and clutches. Repair as necessary. | |
| Dirty fluid | Change the transmission fluid. Carry out transmission fluid drain and refill. Refer to Transmission Fluid Drain and Refill . Carry out fluid cooler cleaning. Refer to Transmission Fluid Cooler Backflushing and Cleaning . | |
| Contaminated torque converter | Clean torque converter, carry out torque flushing. Refer to Torque Converter Contamination Inspection as listed. | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Torque Converter Assembly | ||
| Torque converter internal failure preventing engagement, piston application | Remove transaxle. Inspect for damage. Carry out torque converter checks, refer to appropriate procedures. If torque converter fails to pass the checks or is damaged, install a new or remanufactured torque converter. | |
TORQUE CONVERTER CLUTCH CONCERNS: CYCLING/SHUDDER/CHATTER
| Possible Component | Reference/Action | |
|---|---|---|
| 251 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| TR sensor | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 351 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Selector Lever Cable/TR Sensor | ||
| Selector lever cable system or TR sensor damaged, misaligned | Inspect and repair as required. For selector lever cable information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. | |
| Inspect and repair as required. For TR information, refer to Transmission Range (TR) Sensor . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Case | ||
| Manual control lever assembly damage, manual valve inner lever pin bent, manual valve inner lever damaged, spring rod damaged | Inspect for damage. If damaged, repair as necessary. | |
| Manual valve lever shaft retaining pin damaged | Inspect for damage. If damaged, repair as necessary. | |
OTHER CONCERNS: SHIFT LEVER EFFORTS HIGH
| Possible Component | Reference/Action | |
|---|---|---|
| 252 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| VSS, TSS sensor and TR sensor transmission wiring harness | Inspect for leakage. If areas around sensor show signs of leakage, install a new sensor O-ring. If area behind TR sensor shows signs of leakage, install a new manual lever shaft seal. | |
| 352 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Case | ||
| Damaged | Inspect for damage. If damaged, repair as necessary. | |
| Seal/Gaskets | ||
| Leakage at gaskets, seals, etc. | Check for fluid leaks in the torque converter area. Refer to Leakage Inspection for potential leak locations. | |
| Remove all traces of lubricant on exposed surfaces of the transaxle. Check the vent for free breathing, it should move up and down freely at all times. Inspect the fluid level indicator seal, it should be clean and allow passage of air for venting. Operate the vehicle at normal temperatures and carry out Leak Check Test procedures. Repair as necessary. | ||
OTHER CONCERNS: EXTERNAL LEAKS
| Possible Component | Reference/Action | |
|---|---|---|
| 253 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, VSS, TSS sensor, TFT sensor, TR sensor, SSA, SSB, SSC, SSD, SSE and PCA | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A , go to Pinpoint Test B , go to Pinpoint Test C , go to Pinpoint Test D and Go to Pinpoint Test E . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 353 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Input Shaft | ||
| Damaged | Inspect for damage. Repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
| Torque Converter Assembly | ||
| Torque converter one-way clutch slipping | Carry out Torque Converter Contamination Inspection checks. | |
| If the one-way clutch fails the check, install a new or remanufactured torque converter. | ||
| Incorrect torque converter used in rebuild | Inspect for correct torque converter assembly. If not correct, install the correct torque converter for this application. | |
OTHER CONCERNS: POOR VEHICLE PERFORMANCE
Note. Noise, vibration and harshness (NVH) symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to NOISE, VIBRATION AND HARSHNESS article. Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, refer back to NOISE, VIBRATION AND HARSHNESS article for the next likely system and continue diagnosis.
| Possible Component | Reference/Action | |
|---|---|---|
| 254 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| TCM, vehicle wiring harnesses, SSA, SSB, SSC, SSD, SSE, SSF, PCA and PCB | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the TCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test D . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 354 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Flex Plate or Adapter Plate | ||
| Damaged | Inspect for damage. Repair as necessary. | |
| Loose flexplate nuts | Tighten the nuts to specification. | |
| Adapter plate not aligned correctly | Remove the transaxle. Align the adapter plate. | |
| One-Way Clutch | ||
| Damaged or worn | Inspect for damage. Install new components as necessary. | |
| Friction Elements | ||
| Damaged, burnt or worn | Inspect for damage. Install new components as necessary. | |
| Excessive clutch pack clearance | Check the clutch pack clearance. Install new clutches as necessary. | |
| Planetary Gear Set | ||
| Damaged or worn thrust bearings | Inspect for damage. Install new components as necessary. | |
| Damaged or worn planetary or sun gear | Inspect for damage. Install new components as necessary. | |
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Transmission Fluid Filter | ||
| Plugged, damaged | Inspect for damage. Install a new transmission fluid filter if necessary | |
| Torque Converter | ||
| Worn or damaged torque converter | Refer to Torque Converter Diagnosis . | |
| Transaxle Support Insulator | ||
| Worn or damaged transaxle support insulator | Inspect the transaxle support insulator for damage. Install new as necessary. | |
| Differential Ring and Pinion | ||
| Differential ring and pinion gears damaged | Inspect the differential ring and pinion gears for damage. Install new as necessary. | |
| Differential ring and pinion gear bearings damaged | Inspect the differential ring and pinion gear bearings for damage. Install new as necessary. | |
| Main Control Assembly | ||
| Incorrect line pressure | Check the line pressure. Refer to Special Testing Procedures . | |
| Worn or damaged solenoids or valves | Clean and inspect the main control assembly for damage. Install new as necessary. | |
| Transmission Fluid Filler Tube | ||
| Transmission fluid filler tube grounded out | Inspect the transmission fluid filler tube for damage. Repair or install new as required. | |
OTHER CONCERNS: NOISE/VIBRATION - FORWARD OR REVERSE
| Possible Component | Reference/Action | |
|---|---|---|
| 255 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses and TR sensor | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test C . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 355 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Selector Lever Cable/TR Sensor | ||
| Selector lever cable system or TR sensor damaged, misaligned | Inspect and repair as required. For selector lever cable information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. | |
| Inspect and repair as required. For TR sensor information, refer to Transmission Range (TR) Sensor . | ||
| Flex Plate or Adapter Plate | ||
| Damaged | Inspect for damage. Repair as necessary. | |
OTHER CONCERNS: ENGINE WILL NOT CRANK
| Possible Component | Reference/Action | |
|---|---|---|
| 256 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | No electrical concerns. | |
| 356 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Selector Lever Cable/TR Sensor | ||
| Selector lever cable system or TR sensor damaged, misaligned | Inspect and repair as required. For selector lever cable information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. | |
| Inspect and repair as required. For TR sensor information, refer to Transmission Range (TR) Sensor . | ||
| Case | ||
| Manual control lever assembly damage, manual valve inner lever pin bent, manual valve inner lever damaged, spring rod damaged | Inspect for damage. If damaged, repair as necessary. | |
| Manual valve lever shaft retaining pin damaged | Inspect for damage. If damaged, repair as necessary. | |
| Park System | ||
| Park gear, abutment, abutment plate, parking pawl return spring, park or guide plate, parking actuating rod, parking pawl shaft, manual lever detent spring damaged or misassembled | Inspect for damage. If damaged, repair as necessary. | |
| External selector lever linkages/brackets damaged | Inspect for damage. If damaged, repair as necessary. | |
OTHER CONCERNS: NO PARK RANGE
| Possible Component | Reference/Action | |
|---|---|---|
| 257 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses, TFT sensor and SSB | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A and Go to Pinpoint Test B . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 357 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. Carry out Line Pressure Test. Refer to Special Testing Procedures . | |
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Case | ||
| Case vent damaged | Inspect for damage. If damaged, repair as necessary. | |
| Torque Converter Assembly | ||
| Torque converter internal failure preventing engagement, piston application | Remove transaxle. Inspect for damage. Carry out torque converter checks, refer to Torque Converter Contamination Inspection . If torque converter fails to pass the checks or is damaged, install a new or remanufactured torque converter. | |
| Other | ||
| Restriction in the transaxle cooling system | Refer to TRANSAXLE/TRANSMISSION COOLING article for information and diagnosis of cooling issues. | |
| Excessive trailer tow load | Refer to specifications on trailer towing. | |
| Poor engine driveability | Check engine driveability. Refer to ENGINE SYSTEM - GENERAL INFORMATION article. | |
OTHER CONCERNS: OVERHEATING
| Possible Component | Reference/Action | |
|---|---|---|
| 259 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 359 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. Carry out Line Pressure Test. Refer to Special Testing Procedures . | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Low/Reverse Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. If damaged, repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. If damaged, repair as necessary. | |
| Return spring damaged | Inspect for damage. If damaged, repair as necessary. | |
OTHER CONCERNS: NO ENGINE BRAKING IN MANUAL 1
| Possible Component | Reference/Action | |
|---|---|---|
| 261 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| No electrical concerns. | ||
| 361 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Case | ||
| Cap not seated | Instal the vent cap past the second stop. | |
| Case vent damaged. | Inspect for damage. If damaged, repair as necessary. | |
| Other | ||
| Transaxle overheating | Refer to routine 257/357. | |
| Water in transaxle | Inspect the transmission fluid level indicator handle and seal. Install a new indicator if damage is indicated. | |
| Vent cap | Inspect for foreign material in cap, clean as necessary | |
OTHER CONCERNS: FLUID VENTING OR FOAMING
| Possible Component | Reference/Action | |
|---|---|---|
| 263 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses and SSC | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 363 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Main Control | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Separator plate damaged | Inspect for damage. If damaged, repair as necessary. | |
| Contamination | Disassemble and clean. | |
| Valves/springs damaged, misassembled, missing, stuck or bore damaged | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. | |
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. If damaged, repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. If damaged, repair as necessary. | |
| Return springs damaged | Inspect for damage. If damaged, repair as necessary. | |
| Low One-Way Clutch | ||
| Worn, damaged or assembled incorrectly | Inspect for damage. Repair as necessary. | |
OTHER CONCERNS: SLIPS/CHATTERS IN 1ST GEAR
| Possible Component | Reference/Action | |
|---|---|---|
| 264 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 364 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Fluid Pump Assembly | ||
| Bolts not tightened to specification | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Servo | ||
| Seals (piston and cover) damaged | Inspect for damage. Repair as necessary. | |
| Band | ||
| Band damaged | Inspect for damage. Repair as necessary. | |
| Servo worn or damaged | Inspect for damage. If damaged, repair as necessary. | |
| Not adjusted correctly | Adjust correctly. | |
| Anchor bolt damaged or worn | Inspect for damage. If damaged, repair as necessary. | |
| OD Planetary Assembly | ||
| Planetary damaged | Inspect for damage. If damaged, repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. If damaged, repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. If damaged, repair as necessary. | |
| Return springs damaged | Inspect for damage. If damaged, repair as necessary. | |
OTHER CONCERNS: SLIPS/CHATTERS IN 2ND GEAR
| Possible Component | Reference/Action | |
|---|---|---|
| 282 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | No electrical concerns. | |
| 382 - HYDRAULIC/MECHANICAL ROUTINE | ||
| Transmission Fluid | ||
| Incorrect level | Adjust transmission fluid to the correct level. Refer to Preliminary Inspection . | |
| Condition | Carry out Transmission Fluid Condition Check. Refer to Preliminary Inspection . | |
| Incorrect Pressures | ||
| High/low pressures | Check pressure at line tap. | |
| Carry out Line Pressure Test. Refer to Special Testing Procedures . | ||
| Fluid Pump Assembly | ||
| Bolts not tightened to specification. | Tighten to specifications. | |
| Gasket damaged | Inspect for damage. If damaged, repair as necessary. | |
| Porosity, cross leaks, plugged hole | Inspect for damage. If damaged, repair as necessary. | |
| Forward Clutch Assembly | ||
| Seals, piston damaged | Inspect for damage. Repair as necessary. | |
| Check balance dam | Inspect for damage. Repair as necessary. | |
| Friction elements damaged or worn | Inspect for damage. Repair as necessary. | |
| Return springs damaged | Inspect for damage. Repair as necessary. | |
OTHER CONCERNS: SLIPS/CHATTERS IN 3RD GEAR
| Possible Component | Reference/Action | |
|---|---|---|
| 283 - ELECTRICAL ROUTINE | ||
| Powertrain Control System | ||
| PCM, vehicle wiring harnesses and SSD | Carry out on-board diagnostic tests. Refer to the Introduction - Gasoline Engines article for diagnosis and testing of the PCM. | |
| Go to Pinpoint Test A . | ||
| Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. | ||
| 383 - HYDRAULIC/MECHANICAL ROUTINE | ||
| No Hydraulic/Mechanical concerns. | ||
OTHER CONCERNS: NO ENGINE BRAKING IN ALL GEARS