Diagnosis - 4l30-e Acura SLX I

APPLICATION

TRANSMISSION APPLICATION

DESCRIPTION

Automatic transmission is electronically controlled. Transmission shifting and torque converter lock-up are controlled by Powertrain Control Module (PCM). The PCM receives information from various input devices and uses this information to control shift solenoids, band apply solenoid and Torque Converter Clutch (TCC) solenoid. The PCM uses input signals to control pressure control solenoid (force motor) operation, which operates the pressure regulator valve to control line pressure.

A torque management control system is used. The PCM uses a torque management control system to deliver a spark advance signal during transmission shifting. This controls engine torque and reduces engagement shock caused by a change in vehicle speed.

The PCM contains a fail-safe system. When a failure or problem is present in the transmission electronic control system, the PCM may go into a back-up mode using pre-programmed values, allowing vehicle to be driven. The CHECK TRANS light on instrument panel will flash to inform driver of a problem. Vehicle can be driven, but shifting must be done manually. For additional information, see POWERTRAIN CONTROL MODULE (PCM) under OPERATION.

Transmission is capable of 3 different shift modes, Normal (NOR) mode, Power (PWR) mode and Winter mode. For additional information, see SHIFT MODES under OPERATION.

Transmission is equipped with shift and key lock systems. Shift lock system prevents gearshift lever movement from "P" position unless brake pedal is depressed, ignition is on and release button on gearshift lever is depressed. Key lock system prevents ignition switch from being placed in LOCK position unless gearshift lever is in "P" position. For additional information on shift and key lock systems, see SHIFT & KEY LOCK SYSTEMS under OPERATION.

Shift Lock System

Shift lock system prevents gearshift lever movement from "P" position unless brake pedal is depressed, ignition is on and release button on gearshift lever is depressed. Shift lock system uses a safety lock controller and shift lock solenoid for controlling gearshift lever operation. When brake pedal is depressed, brake switch delivers an input signal to safety lock controller to indicate that brakes are applied, allowing gearshift lever movement from "P" position. Safety lock controller and shift lock solenoid are located near gearshift lever. (Scheme 32) Only adjustment procedures are available. See SHIFT LOCK CABLE ADJUSTMENT under ON-VEHICLE SERVICE in HYDRA-MATIC 4L30-E OVERHAUL (ACURA, HONDA & ISUZU) article.

Key Lock System

Shift lock cable is connected between gearshift lever and ignition switch. When gearshift lever is placed in "P" position, shift lock cable moves lock on ignition switch so ignition switch may be placed in LOCK position. For testing of key lock system, see KEY LOCK SYSTEM under SYSTEM TESTS.

Scheme 32

SHIFT MODES

Note. Transmission is capable of 3 different shift modes, Normal (NOR) mode, Power (PWR) mode and Winter mode. Shift mode may be selected by using POWER or WINTER mode switch mounted on center console, near gearshift lever. Shift modes are used to change transmission shift points for various vehicle operating conditions.

Normal Mode

Normal mode is obtained when neither Power mode or Winter mode are selected. Normal mode provides standard transmission shift points.

Power Mode

Power mode is obtained by using POWER mode switch on center console, near gearshift lever. Power mode slightly increases engine speed at which transmission shift points occur for maximum performance. Power mode may be selected in any forward gear position. When Power mode is selected with ignition on, POWER DRIVE indicator light in instrument cluster will illuminate.

Winter Mode

Winter mode is obtained by using WINTER mode switch on center console, near gearshift lever. Winter mode is activated when all of the following conditions are present.

1. Accelerator opening is approximately 8 percent or less.
2. Kickdown switch is off.
3. Gearshift lever is in "D" position.
4. Transmission fluid temperature is 120°F (248°C) or less.
5. Vehicle speed is 7 MPH or less.
6. WINTER mode switch is on.

When in Winter mode, transmission starts off in 3rd gear to aid in vehicle traction on ice and snow. When Winter mode is selected with ignition on, WINTER DRIVE indicator light will illuminate. WINTER DRIVE indicator light is located in instrument cluster. Winter mode is canceled when any of the following conditions are present.

1. Ignition is turned off.
2. Gearshift lever is placed in "3", "2" or "L" position.
3. Transmission fluid temperature is 140°F (284°C) or greater.
4. Vehicle speed exceeds 22 MPH.
5. WINTER mode switch is turned off.

Winter mode should only be used on slippery road conditions. Operation of Winter mode during normal driving conditions will result in decreased performance and sluggish acceleration.

POWERTRAIN CONTROL MODULE (PCM)

The PCM receives information from various input devices and uses this information to control the following output devices: shift solenoids, band apply solenoid, Torque Converter Clutch (TCC) solenoid and pressure control solenoid (force motor).

The PCM contains a self-diagnostic system which stores a Diagnostic Trouble Code (DTC) if a failure or problem is present in the transmission electronic control system. If a specific failure or problem is present, CHECK TRANS light will flash to inform driver of a problem. See DTC IDENTIFICATION table. CHECK TRANS light is located on left side of instrument panel, below air vent.

DTCs may be retrieved to determine transmission problem area. For information on retrieving DTCs, see SELF-DIAGNOSTIC SYSTEM . The PCM contains a fail-safe system. When a specific failure or problem is present in the transmission electronic control system, the PCM may go into back-up mode using pre-programmed values, allowing vehicle to be driven. The CHECK TRANS light may flash to inform driver of a problem. See DTC IDENTIFICATION table.

Vehicle can be driven in back-up mode, but shifting must be done manually. When manually shifting transmission, if gearshift lever is placed in "D" or "3" position, transmission remains in 4th gear. If gearshift lever is placed in "2" position, transmission remains in 3rd gear. If gearshift lever is placed in "L" position, transmission remains in 1st gear. If gearshift lever is placed in "R" position, transmission will shift into reverse. Back-up mode may be cleared by turning ignition off, then back on again.

For additional information on the self-diagnostic system, see SELF-DIAGNOSTIC SYSTEM. The PCM is located below center of instrument panel. (Scheme 33)

Scheme 33

A/C Signal

The A/C compressor relay delivers an input signal to PCM to indicate A/C operation. The A/C compressor relay is located in fuse/relay box at passenger's side front corner of engine compartment.

Brakelight Switch

Brakelight switch delivers an input signal to PCM to indicate vehicle braking. Brakelight switch is located near brake pedal. Brakelight switch may be referred to as brake switch.

Cruise Control Signal

Transmission will downshift when an overdrive OFF signal is received from cruise control unit. Cruise control unit is located behind passenger's side kick panel. Cruise control unit may also be referred to as cruise control module.

Diagnostic Connector

Diagnostic connector will deliver an input signal to display a Diagnostic Trouble Code (DTC) using CHECK TRANS light on instrument panel. Diagnostic connector may be referred to as Data Link Connector (DLC). (Scheme 34)

Engine Coolant Temperature (ECT) Sensor

ECT sensor delivers an input signal to PCM to indicate engine coolant temperature. ECT sensor is located on coolant pipe at rear of cylinder head.

Engine Speed Or RPM Signal

An engine speed or RPM signal is delivered to PCM from ignition control module, located below ignition coils.

Kickdown Switch

Kickdown switch delivers an input signal to PCM to indicate if accelerator pedal is fully depressed. Kickdown switch is located on accelerator pedal.

Mode Switch

Mode switch delivers an input signal to PCM to indicate shift lever position. Mode switch is located on side of transmission. (Scheme 35)

POWER Mode Switch

POWER mode switch delivers an input signal to PCM to indicate when POWER mode switch is positioned in the Power mode. POWER mode switch is located on center console, near gearshift lever.

Speed Sensor

Speed sensor delivers an input signal to PCM to indicate transmission output shaft speed. Speed sensor is located on extension housing on rear of transmission. (Scheme 35) Speed sensor may be referred to as magnetic sensor.

Throttle Position (TP) Sensor

The TP sensor delivers an input signal to PCM to indicate throttle position. The TP sensor is mounted on side of throttle body.

Transmission Oil Temperature Sensor

Transmission oil temperature sensor delivers an input signal to PCM to indicate transmission oil temperature. The PCM uses this input signal for controlling the Winter shift mode. The PCM also uses input signal for controlling the torque converter clutch and A/T oil temperature warning light. Transmission oil temperature sensor is located on wiring harness in adapter case oil pan. (Scheme 35)

WINTER Mode Switch

WINTER mode switch delivers an input signal to PCM to indicate when the WINTER mode switch is positioned in Winter mode. WINTER mode switch is located on center console, near gearshift lever.

Scheme 34

Scheme 35

A/T Oil Temperature Warning Light

The PCM delivers an output signal to illuminate A/T oil temperature warning light if transmission oil temperature is greater than 284°F (140°C). Transmission oil temperature light will turn off when transmission oil temperature is less than 266°F (130°C). A/T temperature light is located in instrument cluster.

Anti-Lock Brake System (ABS) Signal

The TCM delivers an output signal to ABS controller when gearshift lever is in "R" or "L" position. The ABS controller uses this input signal for controlling ABS operation.

Band Apply Solenoid

The PCM delivers an output signal to operate band apply solenoid. Band apply solenoid (located on main valve body) regulates oil flow when a 3-2 downshift exists to prevent engine over speed and shock control. (Scheme 35)

CHECK TRANS Light

The PCM delivers an output signal to flash CHECK TRANS light on instrument panel if a specified failure or problem is present in transmission electronic control system.

The PCM outputs various operating data to the diagnostic connector. Operating data may be obtained by connecting a scan tool to diagnostic connector. Diagnostic connector may be referred to as Data Link Connector (DLC).

POWER DRIVE Indicator Light

The PCM delivers an output signal to illuminate POWER DRIVE indicator light when POWER mode switch is placed in Power mode with ignition on. POWER DRIVE light is located in instrument cluster.

Pressure Control Solenoid (Force Motor)

The PCM delivers an output signal to operate pressure control solenoid, which operates pressure regulator valve to control line pressure. Pressure control solenoid is located on adapter case valve body. (Scheme 35)

Shift Solenoids

The PCM controls transmission shifting by delivering an output signal to 1-2/3-4 and 2-3 shift solenoids. Shift solenoids are operated in accordance with gear position. See SHIFT SOLENOID OPERATION table. Shift solenoids are located on main valve body. (Scheme 35)

SHIFT SOLENOID OPERATION

Torque Converter Clutch (TCC) Solenoid

The PCM controls torque converter lock-up by delivering an output signal to TCC solenoid, located on adapter case valve body. (Scheme 35) Torque converter lock-up occurs only when all of the following conditions are present

1. Engine and transmission are at normal operating temperature.
2. Brake pedal is released.
3. Transmission is in 2nd, 3rd or 4th gear.

Torque Management Control Signal

The PCM delivers a spark advance output signal during transmission shifting. This reduces engagement shock caused by a change in vehicle speed.

WINTER DRIVE Indicator Light

The PCM delivers an output signal to illuminate WINTER DRIVE indicator light when WINTER mode switch is placed in Winter mode with ignition on. WINTER DRIVE indicator light is located in instrument cluster.

CHECK TRANS LIGHT TEST

Note. Perform this test if CHECK TRANS light is on steady at all times with ignition on and no diagnostic trouble codes are stored, or CHECK TRANS light remains off when ignition is first turned on.

When ignition is turned on, CHECK TRANS light on instrument panel should come on for about 2-3 seconds while PCM is performing a self-test of the circuit and components, then light should turn off. When ignition is on and PCM detects an electrical failure in the transmission electronic control system, the PCM will flash CHECK TRANS light and may store a diagnostic trouble code in memory.

CHECK TRANS Light Is On Steady With Ignition On

1. This condition may be caused by a short circuit to ground between CHECK TRANS light and PCM. Check wiring between PCM and CHECK TRANS light on instrument panel for a short circuit to ground.
2. If no short circuit to ground is present in the wiring, replace PCM. See «PCM»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) under REMOVAL & INSTALLATION.

CHECK TRANS Light Remains Off

1. This condition may be caused by an open circuit or short to power between CHECK TRANS light and PCM. Check wiring between PCM and CHECK TRANS light on instrument panel for an open circuit or short to power.
2. Ensure battery voltage is present between fuse in fuse box and CHECK TRANS light. Check fuse and all connections as necessary.
3. If battery voltage is present as specified and no open or short circuit is present between CHECK TRANS light and PCM, replace PCM. See «PCM»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) under REMOVAL & INSTALLATION.

INTERMITTENT CONDITIONS

If TECH 1 scan tool displays DTC as intermittent, or if after a test drive a DTC does not reappear though the detection conditions for the DTC, problem is most likely a faulty electrical connection or loose wiring. Intermittent problems are rarely present in electronic components such as the PCM, but rather in electrical connections or ground circuits. When an intermittent condition is present, perform the following procedure.

1. Check for loose connections at electrical terminal connectors. Check for improperly seated electrical connectors or damaged electrical terminals.
2. Check for loose or corroded ground connections. Check for pinched or damaged wiring. Check for improperly routed wiring which may cause electro-magnetic interference from spark plug wires, distributor wires, ignition coil and alternator.
3. Use F3: Snapshot mode to isolate the cause of an intermittent condition following scan tool manufacturer's instructions. Set Snapshot mode to trigger on suspected DTC, or if you notice the reported symptom during test drive, manually trigger Snapshot mode.
4. After Snapshot mode is triggered, command scan tool to play back flow of data recorded from each of the various sensors. Signs of an intermittent condition in a sensor circuit may cause a sudden jump in data values out of normal range.

SYSTEM DIAGNOSIS

The PCM monitors transmission operation. The PCM contains a self-diagnostic system, which stores a Diagnostic Trouble Code (DTC) if a specified failure or problem is present in the transmission electronic control system. If a failure or problem is present in the transmission electronic control system, CHECK TRANS light may flash to inform driver of a problem. See DTC IDENTIFICATION table. The DTC can be retrieved to determine transmission problem area.

RETRIEVING DIAGNOSTIC TROUBLE CODES

Note. DTCs are retrieved by using a TECH 1 scan tool. Perform diagnostic circuit check to ensure proper operation of CHECK TRANS light before attempting to retrieve DTCs. When using TECH 1 scan tool, different modes may be used. Follow scan tool manufacturer's instructions.

Diagnostic Circuit Check

1. Turn ignition on. CHECK TRANS light should illuminate for 2-3 seconds, then go off, indicating light circuit is operating properly.
2. If CHECK TRANS light functions as specified, DTCs can be retrieved. See «PCM DIAGNOSTIC TROUBLE CODES»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__pcm-diagnostic-trouble-codes) . If CHECK TRANS light is flashing with ignition on, proceed to «PCM DIAGNOSTIC TROUBLE CODES»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__pcm-diagnostic-trouble-codes) .
3. If CHECK TRANS light does not illuminate as specified, or remains off, proceed to «CHECK TRANS LIGHT TEST»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__check-trans-light-test) under TROUBLE SHOOTING.

PCM Diagnostic Trouble Codes

1. Ensure ignition is off. Connect Adapter Cable and scan tool to DLC. Connect scan tool to battery voltage (if required). Go to next step.
2. Turn ignition on. Using scan tool, note DTC displays on scan tool following scan tool manufacturer's instructions. Go to next step.
3. Once DTC is obtained, determine probable cause and symptom. See «DTC IDENTIFICATION»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. For trouble shooting of DTC, see appropriate DTC test under «DIAGNOSTIC TESTS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__diagnostic-tests) . Turn ignition off. Remove scan tool.

DTC IDENTIFICATION

CLEARING DIAGNOSTIC TROUBLE CODES

1. Using TECH 1 scan tool, use F4: Clear Code mode from main menu to clear DTC from PCM memory using scan tool manufacturer's instructions.
2. If DTC cannot be cleared from PCM memory, or if TECH 1 scan tool is not available, remove STOP-A/T CONT fuse (15-amp) from instrument panel fuse box for at least 10 seconds.

DIAGNOSTIC TESTS

Note. Perform ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK before proceeding with diagnostic tests. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

Note. See appropriate wiring diagram under WIRING DIAGRAMS to aid in component location, wire color and terminal identification.

Conditions For Setting DTC

1. DTCs P0712 and P0713 are not present.
2. Transmission fluid temperature is greater than 284°F (140°C) for 1997 models, or 275°F (135°C) for 1998 models.
3. Conditions must be present for 21 seconds.

1. Ensure engine is mechanically in good condition, and not cause of a transmission overheating problem. Ensure transmission fluid is at proper level. See CHECKING FLUID LEVEL under LUBRICATION in appropriate TRANSMISSION SERVICING article. Repair as necessary. Go to next step.
2. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. Observe Transmission Fluid Temperature (TFT) sensor voltage reading on scan tool. If TFT sensor reading is less than .33 volt, go to next step. If reading is not as specified, see «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__diagnostic-aids) .
3. Turn ignition off. Disconnect transmission harness 16-pin Blue connector. Turn ignition on. If TFT sensor signal voltage reading is greater than 4.92 volts, check for faulty wiring harness. If reading is not as specified, go to next step.
4. Check wire (Green/Red on 1997 models, Red/Black on 1998 models) between PCM and TFT sensor for a short to ground. Repair as necessary and go to step 6 . If no problem is found, go to next step.
5. Inspect PCM for poor harness connections. Repair as necessary. If no problem is found, replace PCM and go to next step.
6. Using scan tool, select DTC, then CLEAR INFO function. On 1997 models, ensure transmission fluid temperature is less than 266°F (130°C) for at least 10 seconds. On 1998 models, ensure transmission fluid temperature is less than 257°F (125°C) for at least 10 seconds. On all models, review DTC INFO. If last test failed, or DTC P0218 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Diagnostic Aids

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. Check for possible torque converter stator problem. Verify vehicle owners driving habits, trailer towing, etc.

Check for an out of range sensor by comparing TFT sensor temperature to ambient temperature when vehicle is cold. An out of range sensor can cause delayed low speed shifts or TCC complaints.

Conditions For Setting DTC (System Voltage Low)

1. Engine speed is greater than 1000 RPM.
2. System voltage is less than 10 volts at a maximum transmission temperature of 302°F (150°C).
3. System voltage is less than 7.3 volts at a minimum transmission temperature of -40°F (-40°C).
4. Conditions must be present for 4 seconds.

Conditions For Setting DTC (System Voltage High)

1. System voltage is greater than 16 volts for 2 seconds.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. Using a DVOM, measure voltage between battery terminals. Note reading for future reference. If reading is greater than 10.5 volts, go to next step. If reading is not as specified, charge or replace battery.
2. Start engine and allow it to reach normal operating temperature. Observe generator/check engine light. If light is illuminated, inspect and repair faulty charging system. If light is not illuminated, go to next step.
3. Increase engine speed to 1000-1500 RPM. Observe scan tool system voltage. If reading is 13-15 volts, go to next step. If reading is not as specified, inspect and repair faulty charging system.
4. Turn ignition off. Disconnect PCM harness connectors J-1 (Red) and J-3 (Blue). Turn ignition on. Using a DVOM, measure voltage between ground and PCM harness connector J-1, terminal A4 (Red/White wire), then between ground and PCM harness connector J-3, terminal E16 (Red/Blue wire). Compare voltage readings with that of reading noted in step 1 . If difference in voltage reading is greater than .5 volt, go to next step. If difference in voltage is not as specified, go to step 6 .
5. Repair Red/White wire between PCM and battery for high resistance. Go to step 10 .
6. Using a DVOM, measure voltage between ground and PCM harness connector J-3, terminal E16 (Red/Blue wire), then between ground and PCM harness connector J-3, terminal F16 (Red/Blue wire). Compare voltage readings with that of reading noted in step 1 . If difference in voltage reading is greater than .5 volt, go to next step. If difference in voltage is not as specified, go to step 8 .
7. Repair wire (Red/Blue on 1997 models, White on 1998 models) between PCM and PCM relay for high resistance. Go to step 10 .
8. Check PCM harness connector J-1, terminal A4 (Red/White wire); harness connector J-3, terminal E16 (Red/Blue wire); and harness connector J-3, terminal F16 (Red/Blue wire) for damaged, corroded, or backed-out terminal pins. Repair as necessary and go to step 10 . If no problem is found, go to next step.
9. Replace PCM. Go to next step.
10. Using scan tool, select DTC, then CLEAR INFO function. Start engine and allow it to reach normal operating temperature. PCM must see a system voltage of 10-16 volts. Review DTC INFO. If last test failed, or DTC P0560 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. Check for proper belt tension. Check connections at starter solenoid, fusible link and loose or damaged terminals at generator. Charging battery or jump starting may set DTC P0560.

1. Illegal range position detected for 5 seconds.

1. Ensure transmission linkage between gearshift lever and manual valve is adjusted properly. Check diagnostic circuit. See «RETRIEVING DIAGNOSTIC TROUBLE CODES»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__retrieving-diagnostic-trouble-codes) under SELF-DIAGNOSTIC SYSTEM. Go to next step.
2. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Observe scan tool while moving gearshift lever through all gear ranges. If scan tool display coincides with actual gear range selected, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If operation is not as specified, go to next step.
3. Turn ignition off. Disconnect mode switch harness 8-pin Black connector. Turn ignition on. On 1997 models, use a DVOM to measure voltage between ground and mode switch harness connector terminals No. 3 (Pink/Black wire), No. 6 (Blue/Black wire), No. 7 (Pink wire), then No. 8 (Pink/Blue wire). On 1998 models, use a DVOM to measure voltage between ground and mode switch harness connector terminals No. 3 (Yellow/Green wire), No. 6 (Blue/Black wire), No. 7 (Blue/Yellow wire), then No. 8 (Blue/White wire). On all models, if battery voltage is present at all circuits, go to step 5 . If battery voltage is not present at all circuits, go to next step.
4. Check for an open or short to ground in any circuit which did not indicate battery voltage. Repair as necessary and go to step 8 . If no problem is found, go to step 6 .
5. Ensure circuits checked in step 3 are not shorted together. To check, apply ground to each circuit while monitoring range switch display on scan tool. If more than one gear range is displayed at one time, go to step 7 . If no problem is found, see «RANGE SWITCH LOGIC»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table.
6. Check PCM for poor harness connections. Repair a necessary. If no problem is found, replace PCM. Go to step 8 .
7. Repair appropriate wire as necessary. Go to next step.
8. Using scan tool, select DTC, then CLEAR INFO function. Road test vehicle. Review DTC INFO. If last test failed, or DTC P0705 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. See RANGE SWITCH LOGIC table for additional information.

RANGE SWITCH LOGIC

Conditions For Setting DTC ("R" Bad Position)

1. Engine is running.
2. DTCs P0722 and P0723 are not present.
3. Output speed greater than 3200 RPM.
4. Range switch indicates "R".
5. Conditions must be met for 4 seconds.

Conditions For Setting DTC ("P" Or "N" Bad Position)

1. Engine is running.
2. No TP sensor DTCs.
3. Engine speed is less than 3000 RPM.
4. TP sensor angle is greater than 20 percent.
5. Range switch indicates "P" or "N".
6. Conditions must be met for 4 seconds.

1. Ensure transmission linkage between gearshift lever and manual valve is adjusted properly. Check diagnostic circuit. See «RETRIEVING DIAGNOSTIC TROUBLE CODES»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__retrieving-diagnostic-trouble-codes) under SELF-DIAGNOSTIC SYSTEM. Go to next step.
2. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Observe scan tool while moving gearshift lever through all gear ranges. If scan tool display coincides with actual gear range selected, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If operation is not as specified, go to next step.
3. Turn ignition off. Disconnect mode switch harness 8-pin Black connector. Turn ignition on. On 1997 models, use a DVOM to measure voltage between ground and mode switch harness connector terminals No. 3 (Pink/Black wire), No. 6 (Blue/Black wire), No. 7 (Pink wire), then No. 8 (Pink/Blue wire). On 1998 models, use a DVOM to measure voltage between ground and mode switch harness connector terminals No. 3 (Yellow/Green wire), No. 6 (Blue/Black wire), No. 7 (Blue/Yellow wire), then No. 8 (Blue/White wire). On all models, if battery voltage is present at all circuits, go to step 5 . If battery voltage is not present at all circuits, go to next step.
4. Check for an open or short to ground in any circuit which did not indicate battery voltage. Repair as necessary and go to step 8 . If no problem is found, go to step 6 .
5. Ensure circuits checked in step 3 are not shorted together. To check, apply ground to each circuit while monitoring range switch display on scan tool. If more than one gear range is displayed at one time, go to step 7 . If no problem is found, refer to «RANGE SWITCH LOGIC»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table.
6. Check PCM for poor harness connections. Repair a necessary. If no problem is found, replace PCM. Go to step 8 .
7. Repair appropriate wire as necessary. Go to next step.
8. Using scan tool, select DTC, then CLEAR INFO function. Road test vehicle. Review DTC INFO. If last test failed, or DTC P0705 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. Refer to RANGE SWITCH LOGIC table for additional information.

1. DTCs P0722, P0723 and P1870 are not present (1997).
2. Battery voltage between 10 and 16 volts (1998).
3. Engine running.
4. TFT is between 20 and 248 analog/digital counts.
5. TFT is between -40° and 69.8°F (-40° and 21°C) at engine start-up.
6. Engine coolant temperature is greater than 150°F (70°C).
7. Engine coolant temperature has changed by greater than 90°F (50°C) since engine start-up.
8. Vehicle speed has been greater than 5 MPH for greater than 410 seconds (cumulative time) since engine start-up.
9. TCC slip speed has been greater than 120 RPM for greater than 410 seconds (cumulative time) since engine start-up.
10. Battery voltage between 10 and 16 volts.

DTC will set if all the above is true, and either of the following conditions is true

1. If sensor is stuck, TFT has not changed for greater than 2 counts (from start-up temperature) for greater than 410 seconds.
2. If sensor shows an unrealistic change, TFT shows a change of greater than 36°F (20°C) greater than 14 times in 7 seconds.

1. Perform transmission fluid checking procedure. See CHECKING FLUID LEVEL under LUBRICATION in appropriate TRANSMISSION SERVICING article. Fill if necessary and go to next step.
2. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Select TFT on scan tool. Observe scan tool while moving wiring harness from PCM connectors F7 and D9 to 16-way connector at transmission. If TFT changes by more than 36°F (20°C), go to step 4 . If change is not as specified, go to next step.
3. Ignition off. Disconnect transmission 16-way connector H-53. Install a jumper harness on transmission side of 16-way connector H-53. Using a DVOM and Connector Test Adapter Kit (J35616), measure and record resistance between TFT sensor terminals 3 (Red/Black wire) and 5 (Grey wire). Measure resistance again while moving transmission wiring harness from 16-way connector to TFT sensor connector. If resistance is greater than recorded resistance, go to step 5 . If resistance is lower than recorded resistance, go to step 6 .
4. Inspect Red/Black or Grey wires in engine wiring harness for intermittent open or short circuit. Repair if necessary. If problem was found, go to step 10 . If no problem was found, go to step 9 .
5. Inspect Red/Black or Grey wires in transmission wiring harness for intermittent open circuit. Repair if necessary. If problem was found, go to step 7 . If no problem was found, go to step 8 .
6. Inspect Red/Black or Grey wires in transmission wiring harness for intermittent short circuit. Repair if necessary. If problem was found, go to next step. If no problem was found, go to step 8 .
7. Replace transmission wiring harness assembly. Proceed to step 10 .
8. Replace TFT sensor. Proceed to step 10 .
9. Replace PCM. Proceed to step 10 .
10. Using scan tool, select DTC, then CLEAR INFO function. Ensure sensor indicates TFT changes by more than 4.05°F (2.25°C) for 11 seconds since start-up, and TFT does not change by more than 36°F (20°C) within .2 second for a period of at least 11 seconds. Review DTC INFO. If last test failed, or DTC P0711 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. Diagnose and clear any engine related DTCs or TP sensor codes. Inspect for transmission DTCs that have reset.

1. DTC P0560 is not present (1997).
2. Battery voltage between 10 and 16 volts (1998).
3. Ignition is on.
4. TFT sensor indicates a voltage less than .4 volt.
5. Conditions must be present for 20 seconds.

1. Perform transmission fluid checking procedure. See CHECKING FLUID LEVEL under LUBRICATION in appropriate TRANSMISSION SERVICING article. Fill if necessary and go to next step.
2. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. If scan tool displays TFT sensor voltage of less than .4 volt, go to next step. If reading is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
3. Turn ignition off. Disconnect transmission harness 16-pin Blue connector. Turn ignition on. If TFT sensor voltage rises to 4.92 volts, go to next step. If reading is not as specified, go to step 9 .
4. Turn ignition off. Using a DVOM, measure resistance between TFT sensor harness connector terminals (Green wire and Green/Red wire on 1997 models, Grey wire and Red/Black wire on 1998 models). Compare resistance readings with table. See «TFT SENSOR RESISTANCE»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If resistance is within specification, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If resistance is not within specification, go to next step. TFT SENSOR RESISTANCE Temperature °F (°C) Resistance (Ohms) -40 (-40) 672,000 32 (0) 65,000 68 (20) 25,000 176 (80) 2,500 248 (120) 780 302 (150) 370
5. Disconnect transmission harness connector M-6 (5-pin Black connector). Using a DVOM, measure resistance between TFT sensor terminals (Green wire and Green/Red wire on 1997 models, Grey wire and Red/Black wire on 1998 models). Compare resistance readings with table. See «TFT SENSOR RESISTANCE»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If resistance is within specification, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If resistance is not within specification, go to next step.
6. Remove transmission oil pan. Inspect internal wiring harness for a short to ground. If a short to ground is found, go to step 8 . If no problem is found, go to next step.
7. Disconnect internal wiring harness at TFT sensor. Using a DVOM, measure resistance of TFT sensor. Compare resistance readings with table. See «TFT SENSOR RESISTANCE»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If resistance is within specification, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If resistance is not within specification, go to next step.
8. Replace TFT sensor. Go to step 12 .
9. On 1997 models, check Green/Yellow wire and Green/Red wire between TFT sensor and PCM for a short to ground. On 1998 models, check Red/Black wire between TFT sensor and PCM for a short to ground. On all models, repair as necessary and go to step 12 . If no problem is found, go to next step.
10. Check PCM for poor harness connections. Repair as necessary and go to step 12 . If no problem is found, go to next step.
11. Replace PCM. Go to next step.
12. Using scan tool, select DTC, then CLEAR INFO function. Ensure TFT sensor indicates a voltage greater than .33 volt for 2 seconds. Review DTC INFO. If last test failed, or DTC P0712 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. A scan tool which displays a TFT sensor temperature value at 212°F (100°C), may indicate a short to ground in wire between TFT sensor and PCM.

Check for a out of range sensor by comparing TFT sensor temperature to ambient temperature when vehicle is cold. A out of range sensor can cause delayed low speed shifts or TCC complaints.

1. DTC P0560 is not present (1997).
2. Battery voltage between 10 and 16 volts (1998).
3. Ignition is on.
4. TFT sensor indicates a voltage greater than 4.86 volts.
5. Conditions must be present for 20 seconds.

1. Perform transmission fluid checking procedure. See CHECKING FLUID LEVEL under LUBRICATION in appropriate TRANSMISSION SERVICING article. Fill if necessary and go to next step.
2. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. If scan tool displays TFT sensor voltage greater than 4.86 volts, go to next step. If reading is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
3. Turn ignition off. Disconnect transmission harness 16-pin Blue connector. On 1997 models use a fused jumper wire to jumper Green wire and Green/Red wire together (engine harness side). On 1998 models use a fused jumper wire to jumper Grey wire and Red/Black wire together (engine harness side). Turn ignition on. If TFT sensor voltage drops to less than .4 volt, go to next step. If voltage does not drop as specified, go to step 9 .
4. Turn ignition off. Using a DVOM, measure resistance between TFT sensor harness connector terminals (Green wire and Green/Red wire on 1997 models, Grey wire and Red/Black wire on 1998 models). Compare resistance readings with table. See «TFT SENSOR RESISTANCE»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If resistance is within specification, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If resistance is not within specification, go to next step. TFT SENSOR RESISTANCE Temperature °F (°C) Resistance (Ohms) -40 (-40) 672,000 32 (0) 65,000 68 (20) 25,000 176 (80) 2,500 248 (120) 780 302 (150) 370
5. Disconnect transmission harness 5-pin Black connector. Using a DVOM, measure resistance between TFT sensor terminals (Green wire and Green/Red wire on 1997 models, Grey wire and Red/Black wire on 1998 models). Compare resistance readings with table. See «TFT SENSOR RESISTANCE»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If resistance is within specification, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If resistance is not within specification, go to next step.
6. Remove transmission oil pan. Inspect internal wiring harness for an open. Repair as necessary and go to step 13 . If no problem is found, go to next step.
7. Disconnect internal wiring harness at TFT sensor. Using a DVOM, measure resistance of TFT sensor. Compare resistance readings with table. See «TFT SENSOR RESISTANCE»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If resistance is within specification, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If resistance is not within specification, go to next step.
8. Replace TFT sensor. Go to step 13 .
9. On 1997 models, check Green/Yellow-Green/Red wire between TFT sensor and PCM for a short to power. On 1998 models, check Red/Black wire between TFT sensor and PCM for a short to power. On all models, repair as necessary and go to step 13 . If no problem is found, go to next step.
10. On 1997 models, check Blue/Yellow-Green wire between TFT sensor and PCM for an open. On 1998 models, check Grey wire between TFT sensor and PCM for an open. On all models, repair as necessary and go to step 13 . If no problem is found, go to next step.
11. Check PCM for poor harness connections. Repair as necessary and go to step 13 . If no problem is found, go to next step.
12. Replace PCM. Go to next step.
13. Using scan tool, select DTC, then CLEAR INFO function. Ensure TFT sensor indicates a voltage less than 4.92 volts for 2 seconds. Review DTC INFO. If last test failed, or DTC P0713 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. After transmission is operating, TFT sensor temperature value on scan tool should rise steadily to about 212°F (100°C), then stabilize.

Check for an out of range sensor by comparing TFT sensor temperature to ambient temperature when vehicle is cold. An out of range sensor can cause delayed low speed shifts or TCC complaints.

1. DTCs P0722 and P0723 are not present.
2. PCM detects a closed brake switch/circuit (12 volts) for 2 seconds, and the following events occur 7 consecutive times: vehicle speed is less than 5 MPH, then between 5 MPH and 20 MPH for 4 seconds; then vehicle speed is greater than 20 MPH for 4 seconds.

1. Install scan tool. Turn ignition on. If an ABS DTC is set, check appropriate fuse. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Apply, then release brake pedal. If scan tool displays TCC brake switch as CLOSED with brake pedal applied, then OPEN when released, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If scan tool display is not as specified, go to next step.
2. Using a test light connected to ground, backprobe ignition feed circuit (Green/White wire) at brake switch. If test light illuminates, go to next step. If test light does not illuminate, go to step 4 .
3. Using a test light connected to ground, backprobe Green/Yellow wire at brake switch. If test light does not illuminate, go to step 7 . If test light illuminates, leave test light connected and go to step 5 .
4. Check fuse C-14 (15-amp) in instrument panel fuse box. If fuse is blown, check for a short to ground. Repair as necessary. If fuse is okay, repair open in ignition feed circuit (Green/White wire) between brake switch and instrument panel fuse box. Go to step 13 .
5. Disconnect brake switch harness connector. If test light remains illuminated, go to step 8 . If test light is not illuminated, go to next step.
6. Using a DVOM, check for continuity between brake switch terminals. If continuity is present, go to step 9 . If continuity is not present, go to step 10 .
7. Disconnect brake switch harness connector. Ensure ignition is on. Using a test light connected to ground, probe Green/Yellow wire terminal (harness side). If test light illuminates, leave test light connected and go to next step. If test light does not illuminate, go to step 10 .
8. Turn ignition off. Disconnect PCM harness connector J-3 (Blue). Turn ignition on. If test light illuminates, check Green/Yellow wire between brake switch and PCM for a short to power. Repair as necessary and go to step 13 . If no problem is found, go to step 10 .
9. Replace brake switch. Go to step 13 .
10. Turn ignition off. Reconnect PCM harness connector J-3 (Blue) if disconnected. Turn ignition on. Observe scan tool. If display shows TCC brake switch as OPEN, with brake pedal applied, then CLOSED with brake pedal released, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If scan tool display is not as specified, go to next step.
11. Check PCM for poor harness connections. Repair as necessary and go to step 13 . If no problem is found, go to next step.
12. Replace PCM. Go to next step.
13. Using scan tool, select DTC, then CLEAR INFO function. Ensure PCM brake switch signal indicates zero volts for at least one second with brake pedal applied. Review DTC INFO. If last test failed, or DTC P0719 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. Check brake switch for proper mounting and adjustment.

1. DTCs P0107, P0108, P0106, P1106, P1107, P0122 and P0123 are not present.
2. Not in Park or Neutral.
3. TP sensor angle is greater than 10 percent.
4. Engine vacuum is 0-10.2 in. Hg.
5. Engine speed is 3000-5000 RPM.
6. Transmission speed is less than zero RPM.
7. All conditions must be present for 5 seconds.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Raise and support vehicle. Start engine. Place gearshift lever in any drive range. Observe TRANS OUTPUT SPEED parameter on scan tool. If scan tool indicates that transmission output speed increases as wheel speed increases, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If transmission output speed does not change as specified, go to next step.
2. Check speedometer operation. If operation is okay, go to next step. If operation is not okay, go to step 4 .
3. Check for proper speedometer calibration. If calibration is okay, go to step 16 . If calibration is not okay, go to next step.
4. Turn ignition off. Disconnect PCM harness connector J-3 (Blue). Using a DVOM, measure resistance between PCM harness connector J-3, terminal E1 (Red wire), and terminal E2 (White wire). If resistance is 3000 ohms, go to next step. If resistance is not as specified, go to step 6 .
5. Using a DVOM, select AC volts. Turn driveshaft by rotating a rear wheel by hand. If reading is greater than .5 volt, go to step 7 . If reading is not as specified, go to step 8 .
6. Inspect Red wire and White wire between OSS and PCM for an open or poor connection. Repair as necessary and go to step 17 . If no problem is found, go to step 8 .
7. Reconnect PCM harness connector. Disconnect OSS harness connector. Turn ignition on. Using a DVOM, measure voltage between OSS harness connector terminals. If reading is 4.0-5.1 volts, go to step 16 . If reading is not a specified, go to step 10 .
8. Remove OSS. Check output shaft speed sensor rotor for damage or misalignment. Repair as necessary and go to step 17 . If no problem is found, go to next step.
9. Replace OSS. Go to step 17 .
10. If reading in step 7 was less than 4.0 volts, go to step 12 . If reading was not less than 4.0 volts in step 7 , go to next step.
11. If reading in step 7 was greater than 5.1 volts, go to step 15 .
12. Using a DVOM, measure voltage between ground and Red wire at OSS harness connector. If reading is 4.0-5.1 volts, go to next step. If reading is not as specified, go to step 14 .
13. Repair open in White wire between OSS and PCM. Go to step 17 .
14. Check Red wire between OSS and PCM for an open or short to ground. Repair as necessary and go to step 17 . If no problem is found, go to step 16 .
15. Repair short to power in Red wire between OSS and PCM. Go to step 17 .
16. Replace PCM. Go to next step.
17. Using scan tool, select DTC, then CLEAR INFO function. Operate vehicle so scan tool indicates a transmission output speed greater than 101 RPM for 3 seconds. Review DTC INFO. If last test failed, or DTC P0722 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

DTC P0722 will set when no output speed is detected at start-off. Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary.

Conditions For Setting DTC (In Park Or Neutral)

1. Transmission output speed change is greater than 10,000 RPM.
2. Condition is present for 6 seconds.
3. Engine running time is greater than 2 seconds.

Conditions For Setting DTC (Not In Park Or Neutral)

1. Transmission output speed change is greater than 512 RPM.
2. Condition is present for .075 second.
3. Engine running time is greater than 2 seconds.
4. Engine vacuum less than 10 in. Hg.
5. Output speed greater than 1,380 RPM for 1 second.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Raise and support vehicle. Start engine. Place gearshift lever in any drive range. Observe TRANS OUTPUT SPEED parameter on scan tool. If scan tool indicates that transmission output speed increases as wheel speed increases, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If transmission output speed does not change as specified, go to next step.
2. Check speedometer operation. If operation is okay, go to next step. If operation is not okay, go to step 4 .
3. Check for proper speedometer calibration. If calibration is okay, go to step 16 . If calibration is not okay, go to next step.
4. Turn ignition off. Disconnect PCM harness connector J-3 (Blue). Using a DVOM, measure resistance between PCM harness connector terminal E1 (Red wire), and terminal E2 (White wire). If resistance is 3000 ohms, go to next step. If resistance is not as specified, go to step 6 .
5. Using a DVOM, select AC volts. Turn driveshaft by rotating a rear wheel by hand. If reading is greater than .5 volt, go to step 7 . If reading is not as specified, go to step 8 .
6. Inspect Red wire and White wire between OSS and PCM for an open or poor connection. Repair as necessary and go to step 17 . If no problem is found, go to step 8 .
7. Reconnect PCM harness connector. Disconnect OSS harness connector. Turn ignition on. Using a DVOM, measure voltage between OSS harness connector terminals. If reading is 4.0-5.1 volts, go to step 16 . If reading is not a specified, go to step 10 .
8. Remove OSS. Check output shaft speed sensor rotor for damage or misalignment. Repair as necessary and go to step 17 . If no problem is found, go to next step.
9. Replace OSS. Go to step 17 .
10. If reading in step 7 was less than 4.0 volts, go to step 12 . If reading was not less than 4.0 volts in step 7 , go to next step.
11. If reading in step 7 was greater than 5.1 volts, go to step 15 .
12. Using a DVOM, measure voltage between ground and Red wire at OSS harness connector. If reading is 4.0-5.1 volts, go to next step. If reading is not as specified, go to step 14 .
13. Repair open in White wire between OSS and PCM. Go to step 17 .
14. Check Red wire between OSS and PCM for an open or short to ground. Repair as necessary and go to step 17 . If no problem is found, go to step 16 .
15. Repair short to power in Red wire between OSS and PCM. Go to step 17 .
16. Replace PCM. Go to next step.
17. Using scan tool, select DTC, then CLEAR INFO function. Operate vehicle so scan tool indicates a transmission output speed greater than 101 RPM for 3 seconds. Review DTC INFO. If last test failed, or DTC P0723 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

DTC P0723 will set when output speed has been detected, then lost. Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary.

1. DTCs P0722 or P0723 are not present.
2. PCM detects an open brake switch/circuit (zero volts) during decelerations, and the following events occur 7 consecutive times: vehicle speed is greater than 20 MPH for 4 seconds, then between 5 MPH and 20 MPH for 4 seconds; then vehicle speed is less than 5 MPH.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. Apply, then release brake pedal. If scan tool displays TCC brake switch as CLOSED with brake pedal applied, then OPEN when released, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If scan tool display is not as specified, go to next step.
2. Using a test light connected to ground, backprobe ignition feed circuit (Green/White wire) at brake switch. If test light illuminates, go to next step. If test light does not illuminate, go to step 4 .
3. Using a test light connected to ground, backprobe Green/Yellow wire at brake switch. Apply brake pedal. If test light illuminates, go to step 6 . If test light does not illuminate, go to next step.
4. Check fuse C-14 (15-amp) in instrument panel fuse box. If fuse is blown, check for a short to ground. Repair as necessary. If fuse is okay, repair open in ignition feed circuit (Green/White wire) between brake switch and instrument panel fuse box. Go to step 10 .
5. Disconnect brake switch electrical connector. Using a DVOM, measure resistance between terminals No. 1 and 4 of brake switch. Apply brake pedal. If resistance is zero ohms, go to next step. If resistance is not as specified, go to step 7 .
6. Check Green/Yellow wire between PCM and brake switch for an open. Repair as necessary and go to step 10 . If no problem is found, go to step 8 .
7. Replace brake switch. Go to step 10 .
8. Check for poor PCM harness connections. Repair as necessary and go to step 10 . If no problem is found, go to next step.
9. Replace PCM. Go to next step.
10. Using scan tool, select DTC, then CLEAR INFO function. Ensure PCM brake switch signal indicates 12 volts for at least one second with brake pedal released. Review DTC INFO. If last test failed, or DTC P0724 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. Check brake switch for proper mounting and adjustment.

1. DTCs P0722 and P0723 are not present.
2. Not in Park, Neutral or Reverse.
3. Engine speed is greater than 3500 RPM.
4. Three seconds since upshift.
5. Three seconds since downshift.
6. Three seconds since garage shift ("N" to "D").
7. One of the following occurs: On 1997 models, slip is greater than 595 RPM in 1st gear, greater than 556 RPM in 2nd gear, greater than 536 RPM in 3rd gear or greater than 528 RPM in 4th gear. On 1998 models, slip is greater than 508 RPM in 1st gear, greater than 468 RPM in 2nd gear, greater than 449 RPM in 3rd gear or greater than 440 RPM in 4th gear.
8. Conditions must be present for 5.5 seconds.

1. Inspect cooling system for leaks. Repair as necessary and go to step 6 . If no problem is found, go to next step.
2. Perform transmission fluid checking procedure. See CHECKING FLUID LEVEL under LUBRICATION in appropriate TRANSMISSION SERVICING article. Fill if necessary and go to next step.
3. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. Test drive vehicle in "1", "2", "3" and "D" gears with engine speed greater than 3500 RPM for 5.5 seconds. Using scan tool in SNAPSHOT mode, record each gear ratio. Compare recorded value with «GEAR RATIO SPECIFICATION»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If gear ratios match, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If gear ratios do not match, go to next step. GEAR RATIO SPECIFICATION Gear Range Ratio 1st 2.73-2.99 2nd 1.54-1.71 3rd .93-1.05 4th .66-.78
4. Perform hydraulic pressure test. See TRANSMISSION TESTING in HYDRA-MATIC 4L30-E OVERHAUL (ACURA, HONDA & ISUZU) article. Repair as necessary and go to step 6 . If no problem is found, go to next step.
5. Check for possible clutch slippage. See TROUBLE SHOOTING in HYDRA-MATIC 4L30-E OVERHAUL (ACURA, HONDA & ISUZU) article. Repair as necessary and go to next step.
6. Using scan tool, select DTC, then CLEAR INFO function. Select SPECIFIC DTC, then enter DTC P1871. Test drive vehicle in "D" position with engine speed greater than 3500 RPM to obtain any appropriate gear ratio for 7 seconds. See «GEAR RATIO SPECIFICATION»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If last test failed, or DTC P0730 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Check for intermittent output speed sensor circuit problems. Check for possible incorrect calibration (PCM part number, tire size or rear axle ratio).

1. DTCs P0122, P0123, P0722, P0723 and P1860 are not present.
2. On 1998 models, DTC P1870 is not present.
3. TP angel is greater than 20 percent.
4. Engine speed is greater than 500 RPM and less than 3000 RPM.
5. Engine vacuum is between zero and 10.2 in. Hg.
6. Commanded gear is not 1st.
7. Gear selector in "D" position.
8. TCC is commanded OFF.
9. TCC slip speed is between -30 and 30 RPM (1997 models), or -20 and 40 RPM (1998 models) for 4 seconds.
10. Vehicle speed is greater than 15 MPH, and less than 75 MPH.
11. Speed ratio is greater than .9 and less than 1.8.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Verify TP sensor operation. If TP sensor value is .6-5.0 volts, go to next step. If TP sensor value is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
2. Test drive vehicle in "D" position in 4th gear under steady acceleration, with TP sensor angle greater than 20 percent. Using scan tool, observe TCC SLIP SPEED parameter. If display indicates -30 to 30 RPM while TCC solenoid state is OFF, go to next step. If display is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
3. TCC solenoid is mechanically stuck on. Check for the following: Clogged TCC solenoid exhaust orifice. TCC apply valve stuck in apply position. Misaligned or damaged valve body gaskets. Restricted release passage. Repair as necessary and go to next step.
4. Using scan tool, select DTC, then CLEAR INFO function. Ensure TCC slip is between 200 and 2500 RPM for 4 seconds. Review DTC INFO. If last test failed, or DTC P0742 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

If TCC is mechanically stuck on with parking brake applied and any gear range selected, TCC fluid will mechanically apply TCC, possibly causing engine to stall.

1. DTC P0560 is not present (1997).
2. PCM detects that pressure control solenoid has reached its electrical high or low limit (1997).
3. Battery voltage between 10 and 16 volts (1998).
4. PCM detects that difference between commanded and actual current is 200 mA for over 1 second (1998).

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. Start engine. Ensure gearshift lever is in "P" position. Using scan tool, apply .1 amp through 1.0 amp while observing PC REF. CURRENT and PC ACT. CURRENT. If PC ACT. CURRENT is always within .16 amp, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . If PC ACT. CURRENT is not as specified, go to next step.
2. Turn ignition off. Disconnect transmission harness connector M-6 (5-pin Black connector). Using a DVOM, measure resistance between terminals of pressure control solenoid (Violet/Red wire and Violet/White wire). If resistance is 3-7 ohms, go to step 6 . If resistance is not as specified, go to next step.
3. Remove transmission oil pan. Disconnect internal wiring harness. Using a DVOM, measure resistance of pressure control solenoid. If resistance is 3-7 ohms, go to step 5 . If resistance is not as specified, go to next step.
4. Replace pressure control solenoid. Go to step 8 .
5. Repair open in internal wiring harness. Go to step 8 .
6. Inspect pressure control solenoid circuit for an open, short or poor connection. Repair as necessary and go to step 8 . If no problem is found, go to next step.
7. Replace PCM. Go to next step.
8. Using scan tool, select DTC, then CLEAR INFO function. Ensure pressure control solenoid duty cycle is not at its electrical high or low limit. Review DTC INFO. If last test failed, or DTC P0748 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary.

DTC P0751: SHIFT SOLENOID "A" PERFORMANCE (WITHOUT INPUT SPEED)

Note. Shift solenoid "A" may also be known as 1-2/3-4 shift solenoid. Shift solenoid "B" may also be known as 2-3 shift solenoid.

1. DTCs P0122, P0123, P0722, P0723, P0742, P1860, P0753, and P0758 are not present.
2. Gear range is D4.
3. Vehicle speed is greater than 6.25 MPH.
4. Transmission fluid temperature is 68-266°F (20-130°C) (1997).
5. Transmission fluid temperature is 67-257°F (20-125°C) (1998).

All conditions above must be met, and the combination of the following conditions No. 1, 2, 3 and 4, or 1, 2, 3 and 5 occur 2 consecutive times.

Condition No. 1

1. Commanded 1-2 shift.
2. TP angle is 10-60 percent.
3. TP angle is constant within plus or minus 3 percent.
4. Vehicle speed is between 11-31 MPH.
5. Within 2.2 seconds, engine speed in 2nd gear must be 100 RPM greater than last speed in 1st gear.

Condition No. 2

1. Commanded 2-3 shift.
2. TP angle is 13-60 percent.
3. TP angle is constant within plus or minus 5 percent.
4. Vehicle speed is 20-45 MPH.
5. Within 2.2 seconds, engine speed in 3rd gear must be 64 RPM less than last speed in 2nd gear.

Condition No. 3

1. Commanded 3-4 shift.
2. TP angle is 7-60 percent.
3. TP angle is constant within plus or minus 5 percent.
4. Vehicle speed is 25-87 MPH.
5. Within 2.2 seconds, engine speed in 4th gear must not be greater than last speed in 3rd gear (1997).
6. Within 0.7 seconds, engine speed in 4th gear must be 60 RPM less than the last speed in 3rd gear (1998).

Condition No. 4

1. Commanded 4th gear.
2. TCC is ON.
3. TP angle is 15-60 percent.
4. Speed ratio is .85-1.2 (speed ratio = engine speed divided by output speed).
5. TCC slip speed is 100-2000 RPM for 3 seconds.

Condition No. 5

1. Commanded 4th gear.
2. TCC is ON.
3. TP angle is 13-60 percent.
4. Speed ratio is .5-.85.
5. TCC slip speed is -50 to 500 RPM for 3 seconds.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Start engine. Apply brake pedal. Observe scan tool while moving gearshift lever through all gear ranges. If scan tool display coincides with actual gear range selected, go to next step. If operation is not as specified, go to «RANGE SWITCH LOGIC»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table.
2. Raise and support vehicle. With engine running, place gearshift lever in D4. Using scan tool, command 1st, 2nd, 3rd and 4th gears while accelerating vehicle. If 2-3 or 1-4 shift patterns are detected only, go to next step. If all shift patterns are detected, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . NOTE: Road testing may be necessary.
3. Check shift solenoid/hydraulic circuit for the following: Internal malfunction in one or both shift solenoids. Contamination in one or both shift solenoids. Damaged seals on one or both shift solenoids. Repair as necessary and go to next step.If no problem is found, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
4. Using scan tool, select DTC, then CLEAR INFO function. Road test vehicle. Review DTC INFO. If last test failed, or DTC P0751 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Verify transmission shift speeds are correct. See TRANSMISSION TESTING in HYDRA-MATIC 4L30-E OVERHAUL (ACURA, HONDA & ISUZU) article. Other transmission internal failures may cause more than one shift to occur. A shift solenoid "A" performance problem may set a shift solenoid "B" DTC P0756 or a transmission component slipping DTC P1870.

DTC P0753: SHIFT SOLENOID "A" ELECTRICAL

Note. Shift solenoid "A" may also be known as 1-2/3-4 shift solenoid. Shift solenoid "B" may also be known as 2-3 shift solenoid.

1. Ignition on, engine running.
2. DTC P0560 is not present (1997).
3. Battery voltage 10-16 volts (1998).
4. PCM commands solenoid on and voltage remains high (battery voltage).
5. PCM commands solenoid off and voltage remains low (zero voltage).
6. Conditions must be present for .275 second on 1997 models, or .33 second on 1998 models.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. If DTCs P0753, P0758 and P1860 are set, go to next step. If specified, DTCs are not set, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
2. Ensure ignition is on. Using a DVOM, measure voltage (backprobe) between ground and PCM harness connector J-3 (Blue), terminal E14 (Brown/White wire). If reading is 10-12 volts, go to next step. If reading is not as specified, go to step 4 .
3. Turn ignition off. Disconnect PCM harness connector J-3. Turn ignition on. Using a DVOM, measure voltage between ground and PCM harness connector J-3, terminal F14 (Brown/Red wire). If reading is 10-12 volts, go to step 10 . If reading is not as specified, go to next step.
4. Turn ignition off. Using a DVOM, measure resistance between PCM harness connector J-3, terminal E14 (Brown/White wire) and terminal F14 (Brown/Red wire). If resistance is 18-20 ohms, go to next step. If resistance is not as specified, go to step 6 .
5. Disconnect PCM harness connectors J-1 (Red) and J-2 (White). Using a DVOM, check for continuity between ground and PCM harness connector J-3, terminal F14 (Brown/Red wire). If continuity is present, go to step 11 . If no continuity is present, go to step 7 .
6. Disconnect transmission harness 16-pin Blue connector. Using a DVOM, measure resistance between terminals No. 5 (Brown/Red wire) and No. 6 (Brown/White wire). If resistance is 18-20 ohms, go to step 13 . If resistance is not as specified, go to step 8 .
7. Using a DVOM, measure continuity between ground and PCM harness connector J-3 (Blue), terminal E14 (Brown/White wire). If continuity is present, go to step 12 . If continuity is not present, go to step 9 .
8. Disconnect transmission harness connector M-7 (4-pin Black connector). Using a DVOM, measure resistance between harness connector M-7, terminals No. 3 (Brown/Red wire) and No. 4 (Brown/White wire). If resistance is 18-20 ohms, go to step 14 . If resistance is not as specified, go to step 15 .
9. Check all PCM harness connections. If a problem is found, go to step 17 . If no problem is found, go to step 16 .
10. Repair Brown/Red wire between PCM harness connector J-3 (Blue) and shift solenoid "A" for a short to power. Go to step 18 .
11. Repair Brown/Red wire between PCM harness connector J-3 (Blue) and shift solenoid "A" for a short to ground. Go to step 18 .
12. Repair Brown/White wire between PCM harness connector J-3 (Blue) and shift solenoid "A" for a short to ground. Go to step 18 .
13. Repair wiring harness between transmission harness 16-pin Blue connector and PCM harness connector J-3 (Blue) for an open or poor connection. Go to step 18 .
14. Repair open or poor connection in wiring harness between transmission harness 16-pin Blue connector and transmission harness connector M-7 (4-pin Black connector). Go to step 18 .
15. Replace shift solenoid "A". Go to step 18 .
16. Replace PCM. Go to step 18 .
17. Repair PCM harness connections. Go to next step.
18. Using scan tool, select DTC, then CLEAR INFO function. Operate vehicle and ensure that when shift solenoid "A" is commanded on, voltage drops to zero, then increases to battery voltage when commanded off. Review DTC INFO. If last test failed, or DTC P0753 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary. An open ignition feed circuit can cause multiple DTCs to set. A shift solenoid "B" DTC P0756 may also set with a shift solenoid "A" failure.

DTC P0756: SHIFT SOLENOID "B" PERFORMANCE (WITHOUT INPUT SPEED)

Note. Shift solenoid "A" may also be known as 1-2/3-4 shift solenoid. Shift solenoid "B" may also be known as 2-3 shift solenoid.

1. DTCs P0106, P1106, P0107, P1107, P0108, P0122, P0123, P0722, P0723, P0742, P1860, P0753 and P0758 are not present.
2. Vehicle speed is greater than 6.25 MPH.
3. Gear selector is in "D" position.
4. Engine vacuum is 0-10.2 in. Hg.
5. Engine speed is less than 6000 RPM.
6. Transmission temperature is 68-266°F (20-130°C) (1997).
7. Transmission temperature is 68-257°F (20-125°C) (1998).
8. TCC is off.

All conditions above must be met, and either one of the following fail conditions occurs

1. Solenoid is stuck ON, and conditions No. 3 and 4 are present 2 consecutive times.
2. Solenoid is stuck OFF, and conditions No. 1 and 3 are present 2 consecutive times.

1. TP angle is greater than 45 percent.
2. 1st gear is commanded for 3 seconds.
3. Speed ratio is between .5 and 2.65 (speed ratio = engine speed divided by output speed).
4. Transmission output speed is 320-2000 RPM.
5. TCC slip speed is between -200 and -4000 RPM for 1.8 seconds.

1. Not used.

1. Commanded 2-3 shift.
2. TP angle is between 10 and 60 percent.
3. TP angle is within plus or minus 5 percent.
4. 3rd gear is commanded for 2 seconds.
5. 3rd gear speed ratio is higher than the last 2nd gear speed ratio minus .3 on 1997 models, or minus .05 for 1998 models (scan tool value is numerically greater in 3rd gear).
6. 3rd gear TCC slip speed is greater than or equal to last 2nd gear TCC slip speed plus 520 RPM for 2.1 seconds for 1997 models, or 1.8 seconds for 1998 models.
7. Discontinue test if time since last commanded 2-3 shift is 5.57 seconds.

1. TP angle is greater than 10 percent.
2. 4th gear is commanded for one second.
3. Speed ratio is between 2.0 and 4.0.
4. Transmission output speed is 0-8192 RPM.
5. TCC slip speed is 2000-5000 RPM for 3 seconds.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Start engine. Apply brake pedal. Observe scan tool while moving gearshift lever through all gear ranges. If scan tool display coincides with actual gear range selected, go to next step. If operation is not as specified, go to «RANGE SWITCH LOGIC»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table.
2. Raise and support vehicle. With engine running, place gearshift lever in D4. Using scan tool, command 1st, 2nd, 3rd and 4th gears while accelerating vehicle. If 1st gear was commanded and not achieved, or 4th gear was commanded and a gear range other than 4th occurred, go to next step. If all shift patterns are detected, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) . NOTE: Road testing may be necessary.
3. Check shift solenoid/hydraulic circuit for the following: Internal malfunction in one or both shift solenoids. Contamination in one or both shift solenoids. Damaged seals on one or both shift solenoids. Repair as necessary and go to next step. If no problem is found, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
4. Using scan tool, select DTC, then CLEAR INFO function. Road test vehicle. Review DTC INFO. If last test failed, or DTC P0756 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

A shift solenoid "A" electrical failure can also set a shift solenoid "B" performance DTC P0756. A shift solenoid "B" electrical failure can also set a shift solenoid "B" performance DTC P0756.

DTC P0758: SHIFT SOLENOID "B" ELECTRICAL

Note. Shift solenoid "A" may also be known as 1-2/3-4 shift solenoid. Shift solenoid "B" may also be known as 2-3 shift solenoid.

1. Ignition on, engine running.
2. DTC P0560 is not set (1997).
3. Battery voltage is 10-16 volts (1998).
4. PCM commands solenoid on and voltage remains high (battery voltage).
5. PCM commands solenoid off and voltage remains low (zero voltage).
6. Conditions must be present for .275 second on 1997 models, or .33 second on 1998 models.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. If DTCs P0753, P0758 and P1860 are set, go to step 3 . If specified, DTCs are not set, go to next step.
2. With engine running, apply brake pedal and place gearshift lever in "D" position. Press WINTER switch to select Winter mode. If scan tool displays DTC P0758 at 3rd gear, go to step 7 . If display is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
3. Turn ignition off. Disconnect PCM harness connectors J-2 (White) and J-3 (Blue). Turn ignition on. Using a DVOM, measure voltage between PCM harness connector J-2, terminal C2 (Brown/Black wire) and terminal C8 (Black/Pink wire). If reading is 10-12 volts, go to step 14 . If reading is not as specified, go to next step.
4. Turn ignition off. Using a DVOM, measure resistance between PCM harness connector J-2, terminal C2 (Brown/Black wire) and PCM harness connector J-3, terminal E-14 (Brown/White wire). If resistance is 18-20 ohms, go to step 15 . If resistance is not as specified, go to next step.
5. Disconnect transmission harness 16-pin Blue connector. Using a DVOM, measure resistance between transmission harness connector terminals No. 2 (Brown/Yellow wire) and No. 6 (Brown/White wire). If resistance is 18-20 ohms, go to step 16 . If resistance is not as specified, go to next step.
6. Disconnect transmission harness connector M-7 (4-pin Black connector). On 1997 models, use a DVOM to measure resistance between transmission harness connector M-7, terminals No. 1 (Brown/Black wire) and No. 4 (Brown/White wire). On 1998 models, use a DVOM to measure resistance between transmission harness connector M-7, terminals No. 15 (Brown/White wire) and No. 16 (Brown/Black wire). On all models, if resistance is 18-20 ohms, go to step 17 . If resistance is not as specified, go to step 18 .
7. Turn ignition off. Disconnect PCM harness connectors J-2 (White) and J-3 (Blue). Using a DVOM, measure resistance between PCM harness connector J-2, terminal C2 (Brown/Black wire) and PCM harness connector J-3, terminal E14 (Brown/white wire). If resistance is 18-20 ohms, go to next step. If resistance is not as specified, go to step 9 .
8. Using a DVOM, check for continuity between PCM harness connector J-2, terminal C2 (Brown/Black wire) and ground. If continuity is present, go to step 19 . If no continuity is present, go to step 10 .
9. Disconnect transmission harness 16-pin Blue connector. On 1997 models, use a DVOM to measure resistance between transmission harness connector terminals No. 2 (Brown/Black wire) and No. 6 (Brown/White wire). On 1998 models, use a DVOM to measure resistance between transmission harness connector terminals No. 15 (Brown/White wire) and No. 16 (Brown/Black wire). If resistance is 18-20 ohms, go to step 20 . If resistance is not as specified, go to step 11 .
10. Using a DVOM, check for continuity between ground and PCM harness connector J-3, terminal E14 (Brown/White wire). If continuity is present, go to step 21 . If no continuity is present, go to step 12 .
11. Disconnect transmission harness connector M-7 (4-pin Black connector). Using a DVOM, measure resistance between harness connector M-7, terminals No. 1 (Brown/Black wire) and No. 4 (Brown/White wire). If resistance is 18-20 ohms, go to step 22 . If resistance is not as specified, go to step 23 .
12. Check all connections at PCM and transmission harness 16-pin Blue connector. Repair as necessary and go to step 25 . If no problem is found, go to next step.
13. Reconnect PCM harness connectors J-2 and J-3. Start engine and repeat step 2 . If scan tool displays DTC P0758 at 3rd gear, go to step 24 . If display is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
14. Repair Brown/Black wire between PCM harness connector J-2 and transmission harness connector M-7 for a short to power. Go to step 25 .
15. PCM harness connector J-2, internal terminal C2 (Brown/Black wire) is shorted to power. Replace PCM. Go to step 25 .
16. Repair wire harness between PCM and transmission harness 16-pin Blue connector for a short circuit. Go to step 25 .
17. Repair wire harness between transmission harness 16-pin Blue connector and transmission harness connectors M-6 or M-7 for a short circuit. Go to step 25 .
18. Shift solenoid "B" or its internal wiring harness is faulty. Repair as necessary. Go to step 25 .
19. Repair Brown/Black wire between PCM harness connector J-2 and transmission harness connector M-7 for a short to ground. Go to step 25 .
20. Brown/Black wire between PCM harness connector J-2 and transmission harness 16-pin Blue connector is open, or Brown/White wire between PCM harness connector J-3 and transmission harness 16-pin Blue connector is open. Repair as necessary. Go to step 25 .
21. Repair Brown/White wire between PCM harness connector J-3 and transmission harness connector M-7 for a short to ground. Go to step 25 .
22. Brown/Black wire between transmission harness 16-pin Blue connector and transmission harness connector M-7 is open, or Brown/White wire between transmission harness 16-pin Blue connector and transmission harness connector M-7 is open. Repair as necessary. Go to step 25 .
23. Shift solenoid "B" or its internal wiring harness is faulty. Repair as necessary. Go to step 25 .
24. Replace PCM. Go to next step.
25. Using scan tool, select DTC, then CLEAR INFO function. Operate vehicle and ensure that when shift solenoid "B" is commanded on, voltage drops to zero, then increases to battery voltage when commanded off. Review DTC INFO. If last test failed, or DTC P0758 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary.

1. Check Sum (CSUM) error detected for one second.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. If DTC P1790 is set, go to step 4 . If DTC P1790 is not set, go to next step.
2. If DTC P1792 is set, go to next step.
3. Remove PCM. Using Service Programming System, reprogram transmission EEPROM. Go to step 5 .
4. Replace PCM. Go to next step.
5. Using scan tool, select DTC, then CLEAR INFO function. Road test vehicle. Review DTC INFO. If last test failed, or DTCs P1790 or P1792 are present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

1. DTCs P0122 and P0123 are not present.
2. TP angle is less than 70 percent.
3. Kickdown switch is on.
4. Conditions must be present for one second.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FAILURE RECORDS. If scan tool displays KICKDOWN SWITCH LOW (closed), go to next step. If display is not as specified, go to step 3 .
2. Turn ignition off. Disconnect PCM harness connector J-3 (Blue). Using a DVOM, check for continuity between ground and PCM harness connector J-3, terminal F11 (Light Blue wire). If continuity is present, go to step 4 . If no continuity is present, go to step 7 .
3. If scan tool displays kickdown switch ON when TP angle is less than 70 percent, go to step 5 . If display is not as specified, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
4. Disconnect kickdown switch electrical connector. Using a DVOM, check for continuity between kickdown switch terminals. If continuity is present, go to step 6 . If no continuity is present, go to step 8 .
5. Adjust kickdown switch. Scan tool should display kickdown switch ON when TP angle is greater than 95 percent. Go to step 9 .
6. Replace kickdown switch. Go to step 9 .
7. Replace PCM. Go to step 9 .
8. Repair Light Blue wire between PCM and kickdown switch for a short to ground. Go to next step.
9. Using scan tool, select DTC, then CLEAR INFO function. Ensure torque converter stator temperature switch circuit does not indicate a hot mode when transmission fluid temperature is less than 140°F (60°C) for at least 5 seconds. Review DTC INFO. If last test failed, or DTC P1835 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Check wire harness for a short to ground between PCM and kickdown switch. Check for misadjusted or faulty kickdown switch.

1. DTC P0560 is not present (1997).
2. Battery voltage is 10-16 volts (1998).
3. Ignition on, engine running.
4. PCM commands solenoid on, and voltage remains high (battery voltage).
5. PCM commands solenoid off, and voltage remains low (zero voltage).
6. Conditions met in 1.3 seconds.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. If DTCs P0753 and P0758 are set, go to next step. If specified DTCs are not present, go to step 3 .
2. Using a DVOM, measure voltage (backprobe) between PCM harness connector J-2 (White), terminal C8 (Black/Pink wire) and PCM harness connector J-3 (Blue), terminal E14 (Brown/White wire). If reading is 10-12 volts, go to step 4 . If reading is not as specified, go to step 5 .
3. Turn ignition off. Disconnect PCM harness connectors J-1 (Red) and J-3 (Blue). Using a DVOM, measure resistance between PCM harness connector J-1, terminal A16 (Brown/Yellow wire) and PCM harness connector J-3, terminal E14 (Brown/White wire). If resistance is 10-12 ohms, go to step 11 . If resistance is not as specified, go to step 12 .
4. Using a DVOM, measure voltage (backprobe) between PCM harness connector J-1, terminal A16 (Brown/Yellow wire) and PCM harness connector J-2, terminal C8 (Black/Red wire). If reading is 10-12 volts, go to step 25 . If reading is not as specified, go to step 3 .
5. Turn ignition off. Disconnect PCM harness connectors J-1 (Red) and J-3 (Blue). Using a DVOM, check for continuity between ground and PCM harness connector J-3, terminal E14 (Brown/White wire). If continuity is present, go to next step. If no continuity is present, go to step 8 .
6. Disconnect transmission harness 16-pin Blue connector. Using a DVOM, check for continuity between ground and transmission harness connector terminal No. 12 (Brown/Yellow wire). If continuity is present, go to next step. If no continuity is present, go to step 16 .
7. Disconnect transmission harness connector M-7 (4-pin Black connector). Using a DVOM, check for continuity between ground and transmission harness connector M-7, terminal No. 2 (Brown/Yellow wire). If continuity is present, go to step 17 . If no continuity is present, go to step 18 .
8. Disconnect PCM harness connector J-1 (Red). Using a DVOM, measure resistance between PCM harness connector J-1, terminal A16 (Brown/Yellow wire) and PCM harness connector J-3, terminal E14 (Brown/White wire). If resistance is 10-12 ohms, go to step 25 . If resistance is not as specified, go to next step.
9. Disconnect transmission harness 16-pin Blue connector. Using a DVOM, measure resistance between transmission harness connector terminals No. 6 (Brown/White wire) and No. 12 (Brown/Yellow wire). If resistance is 10-12 ohms, go to step 16 . If resistance is not as specified, go to next step.
10. Disconnect transmission harness connector M-7 (4-pin Black connector). Using a DVOM, measure resistance between transmission harness connector M-7, terminals No. 2 (Brown/Yellow wire) and No. 4 (Brown/White wire). If resistance is 10-12 ohms, go to step 19 . If resistance is not as specified, go to step 20 .
11. Using a DVOM, check for continuity between ground and PCM harness connector J-1, terminal A-16 (Brown/Yellow wire). If continuity is present, go to step 13 . If continuity is not present, go to step 25 .
12. Disconnect transmission harness 16-pin Blue connector. On 1997 models, use a DVOM to measure resistance between transmission harness connector terminals No. 6 (Brown/White wire) and No. 12 (Brown/Yellow wire). On 1998 models, use a DVOM to measure resistance between transmission harness connector terminals No. 13 (Brown/Yellow wire) and No. 15 (Brown/White wire). On all models, if resistance is 10-12 ohms, go to step 23 . If resistance is not as specified, go to step 14 .
13. Disconnect transmission harness 16-pin Blue connector. Using a DVOM, check for continuity between ground and transmission harness 16-pin Blue connector terminal No. 12 (Brown/Yellow wire). If continuity is present, go to step 15 . If no continuity is present, go to step 21 .
14. Disconnect transmission harness connector M-7 (4-pin Black connector). Using a DVOM, measure resistance between transmission harness connector M-7, terminals No. 2 (Brown/Yellow wire) and No. 4 (Brown/White wire). If resistance is 10-12 ohms, go to step 24 . If resistance is not as specified, go to step 20 .
15. Disconnect transmission harness connector M-7 (4-pin Black connector). Using a DVOM, check for continuity between ground and transmission harness connector M-7, terminal No. 2 (Brown/Yellow wire). If continuity is present, go to step 17 . If no continuity is present, go to step 22 .
16. Repair open in Brown/White wire between PCM harness connector J-3 and transmission harness 16-pin Blue connector. Go to step 26 .
17. Brake band apply solenoid is faulty, or its internal wiring harness is shorted to ground. Repair as necessary. Go to step 26 .
18. Repair short to ground in Brown/White wire between transmission harness connector M-7 and transmission harness 16-pin Blue connector. Go to step 26 .
19. Repair open in Brown/White wire between transmission harness connector M-7 and transmission harness 16-pin Blue connector. Go to step 26 .
20. Brake band apply solenoid is faulty, or its internal wiring harness is open. Repair as necessary. Go to step 26 .
21. Repair short to ground in Brown/Yellow wire between PCM harness connector J-1 and transmission harness 16-pin Blue connector. Go to step 26 .
22. Repair short to ground in Brown/Yellow wire between transmission harness connector M-7 and transmission harness 16-pin Blue connector. Go to step 26 .
23. Repair open in Brown/Yellow wire between PCM harness connector J-1 and transmission harness 16-pin Blue connector. Go to step 26 .
24. Repair open in Brown/Yellow wire between transmission harness connector M-7 and transmission harness 16-pin Blue connector. Go to step 26 .
25. Check PCM harness connections. Repair as necessary. If connections are okay, replace PCM. Go to next step.
26. Using scan tool, select DTC, then CLEAR INFO function. Ensure that when 3-2 control solenoid is commanded on, voltage drops to zero, and when commanded off, voltage increases to battery voltage. Review DTC INFO. If last test failed, or DTC P1850 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broken inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary.

1. DTCs P0560, P0751, P0753, P0756 and P0758 are not present.
2. Ignition on, engine running.
3. Battery voltage 10-16 volts (1998).
4. PCM commands solenoid on, and voltage remains low (zero voltage).
5. PCM commands solenoid off, and voltage remains high (battery voltage).
6. Conditions present for .15 second on 1997 models, 0.25 second on 1998 models.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. If DTC P1860 is present, go to next step. If DTC P1860 is not present, go to step 3 .
2. Using a DVOM, measure voltage (backprobe) between PCM harness connector J-2 (White), terminal D2 (Brown/Blue wire) and terminal C8 (Black/Pink wire). If reading is zero volts, go to step 4 . If reading is not as specified, go to step 5 .
3. Apply brake pedal and place gearshift lever in "D" position. Road test vehicle and increase vehicle speed until TCC shows ON in 4th gear. If scan tool displays DTC P1860 with TCC on, go to step 9 . If DTC P1860 is not displayed, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .
4. Turn ignition off. Disconnect PCM harness connector J-2 (White). Using a DVOM, measure resistance between PCM harness connector J-2, terminal D2 (Brown/Blue wire) and terminal C8 (Black/Pink wire). If resistance is 18-20 ohms, go to step 6 . If resistance is not as specified, go to step 7 .
5. Check Brown/Blue wire for a short to power between PCM harness connector J-2 and transmission harness connector M-6 (5-pin Black connector). Repair as necessary and go to step 18 . If no problem is found, go to step 19 .
6. Possible intermittent condition. Check wiring harness and terminals between PCM harness connector J-2 and transmission harness connector M-6. Repair as necessary and go to step 18 . If no problem is found, go to step 19 .
7. Disconnect transmission harness 16-pin Blue connector. On 1997 models, use a DVOM to measure resistance between ground and transmission harness 16-pin Blue connector terminal No. 11 (Brown/Blue wire). On 1998 models, use a DVOM to measure resistance between ground and transmission harness 16-pin Blue connector terminal No. 8 (Brown/Blue wire). On all models, if resistance is 18-20 ohms, go to step 15 . If resistance is not as specified, go to next step.
8. Disconnect transmission harness connector M-6 (5-pin Black connector. Using a DVOM, measure resistance between ground and transmission harness connector M-6, terminal No. 4 (Brown/Blue wire). If resistance is 18-20 ohms, go to step 16 . If resistance is not as specified, go to step 17 .
9. Turn ignition off. Disconnect PCM harness connector J-2 (White). Using a DVOM, measure resistance between PCM harness connector J-2, terminal D2 (Brown/Blue wire) and terminal C8 (Black/Pink wire). If resistance is 18-20 ohms, go to step 18 . If resistance is not as specified, go to next step.
10. Disconnect transmission harness 16-pin Blue connector. On 1997 models, use a DVOM to measure resistance between ground and transmission harness 16-pin Blue connector terminal No. 11 (Brown/Blue wire). On 1998 models, use a DVOM to measure resistance between ground and transmission harness 16-pin Blue connector terminal No. 8 (Brown/Blue wire). On all models, if resistance is 18-20 ohms, go to step 12 . If resistance is not as specified, go to next step.
11. Disconnect transmission harness connector M-6 (5-pin Black connector. Using a DVOM, measure resistance between ground and transmission harness connector M-6, terminal No. 4 (Brown/Blue wire). If resistance is 18-20 ohms, go to step 13 . If resistance is not as specified, go to step 14 .
12. Repair Brown/Blue wire for a short to ground between PCM harness connector J-2 and transmission harness 16-pin Blue connector. Go to step 20 .
13. Repair wiring harness for a short to ground between transmission harness 16-pin Blue connector and transmission harness connector M-6. Go to step 20 .
14. TCC PWM solenoid is faulty, or its internal wiring harness is shorted to ground. Repair as necessary. Go to step 20 .
15. Repair open in Brown/Blue wire between PCM harness connector J-2 and transmission harness 16-pin Blue connector. Go to step 20 .
16. Repair open in Brown/Blue wire between transmission harness 16-pin Blue connector and transmission harness connector M-6. Go to step 20 .
17. TCC PWM solenoid is faulty, or its internal wiring harness is open. Repair as necessary. Go to step 20 .
18. Check PCM harness connections. Repair as necessary. If connections are okay, replace PCM. Go to step 20 .
19. Check Brown/Blue wire connections at PCM harness connector J-2 and transmission harness 16-pin Blue connector and transmission harness connector M-6. Repair as necessary and go to next step.
20. Using scan tool, select DTC, then CLEAR INFO function. Ensure that when TCC PWM solenoid is commanded on, voltage increases to battery voltage, and when commanded off, voltage decreases to zero volts. Review DTC INFO. If last test failed, or DTC P1860 is present, repeat step 1 . If last test passed and no DTCs are present, testing is complete.

Inspect for poor harness connections and improper wire harness routing. An intermittent condition may be caused by a wire which is broke inside its insulation, or shorted to an additional circuit or chassis ground. Check harness connectors for damaged, corroded or backed-out terminal pins. Repair as necessary.

The following conditions must be met for 3 TCC cycles with excessive TCC slip conditions

1. DTCs P0106, P1106, P0107, P1107, P0108, P0122, P0123, P0722, P0723, P0751, P0753, P0756, P0758 and P1860 are not present.
2. No TCC solenoid DTC P0742.
3. Engine speed is 800-3360 RPM.
4. Engine vacuum is 0-10.2 in. Hg.
5. Gear range is D4.
6. TP angle is 12-70 percent.
7. TFT is between 68-286°F (20-141°C).
8. TCC is on for 3 seconds.
9. TCC slip speed is 300-800 RPM for 10 seconds.
10. Vehicle speed is 24-69 MPH.
11. Speed ratio is .5-.95.

1. Install scan tool. Turn ignition on. Using scan tool, record DTC FREEZE FRAME and FAILURE RECORDS. Apply brake pedal. Observe scan tool while moving gearshift lever through all gear ranges. If scan tool display matches each gear range selected, go to next step. If operation is not as specified, go to «RANGE SWITCH LOGIC»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table.
2. Road test vehicle in 4th gear with TCC engaged. Observe scan tool. If TCC SLIP SPEED is greater than 130 RPM for 8 seconds at any time with TCC engaged, see TROUBLE SHOOTING in HYDRA-MATIC 4L30-E OVERHAUL (ACURA, HONDA & ISUZU) article. If TCC SLIP SPEED never exceeds 130 RPM for 8 seconds, go to «DIAGNOSTIC AIDS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) .

A malfunctioning range switch, faulty shift solenoids, faulty TCC solenoid or faulty TCC PWM solenoid may set DTC P1870. An internal transmission failure or incorrect engine speed may also set DTC P1870.

COMPONENT TESTS

Note. Some component testing information not available from manufacturer at time of publication. To aid in diagnosis of a certain component, refer to appropriate DTC test related to that component under DIAGNOSTIC TESTS .

A/C COMPRESSOR RELAY

1. Remove A/C compressor relay from fuse/relay box at passenger's side front corner of engine compartment. Note A/C compressor terminal identification. (Scheme 36)
2. Using a DVOM, ensure continuity is present between terminals No. 1 and 3. Continuity should not be present between terminals No. 2 and 4.
3. Apply battery voltage to terminals No. 1 and 3. Ensure continuity is now present between terminals No. 2 and 4. Replace A/C compressor relay if defective.

Scheme 36

Band apply solenoid is located on main valve body. (Scheme 35) See DIAGNOSIS under DTC P1850: BRAKE BAND APPLY SOLENOID MALFUNCTION.

Without Cruise Control

1. Disconnect electrical connector from brakelight switch. Brakelight switch is located near brake pedal.
2. Using a DVOM, ensure continuity is present between terminals on brakelight switch only when brake pedal is depressed.
3. If continuity is not as specified, ensure brake pedal is properly adjusted so brakelight switch can obtain proper travel for switch operation. If brakelight switch travel is okay, replace brakelight switch.

With Cruise Control

1. Disconnect electrical connector from brakelight switch and note terminal identification. (Scheme 37) Brakelight switch is located near brake pedal.
2. Using a DVOM, ensure continuity is present between specified terminals in relation to brake pedal position. See «BRAKELIGHT SWITCH CONTINUITY SPECIFICATIONS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table.
3. If continuity is not as specified, ensure brake pedal is properly adjusted so brakelight switch can obtain proper travel for switch operation. If brakelight switch travel is okay, replace brakelight switch.

BRAKELIGHT SWITCH CONTINUITY SPECIFICATIONS

Scheme 37

ECT sensor is located on coolant pipe at rear of cylinder head. ECT sensor contains a Blue/Red wire and Blue/Yellow wire in harness connector. See appropriate SYSTEM/COMPONENT TESTS article.

Kickdown switch is located on accelerator pedal. See DIAGNOSIS under DTC P1835: KICKDOWN SWITCH ALWAYS ON.

1. Mode switch is located on side of transmission. (Scheme 35) Remove necessary covers for access to mode switch electrical connector. Disconnect mode switch electrical connector and note terminal identification. (Scheme 38)
2. Using a DVOM, check for continuity between specified terminals in relation to shift lever position. See «MODE SWITCH CONTINUITY»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) table. If continuity is not as specified, mode switch may require adjustment. See «MODE SWITCH»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e) under REMOVAL & INSTALLATION. Replace mode switch if specified continuity cannot be obtained by adjusting.

MODE SWITCH CONTINUITY

Scheme 38

POWER mode switch is located on center console, near gearshift lever. Component testing information is not available.

Force motor solenoid is located on adapter case valve body. (Scheme 35) See DIAGNOSIS under DTC P0748: PRESSURE CONTROL SOLENOID (FORCE MOTOR) CIRCUIT ELECTRICAL.

SHIFT SOLENOID

Note. Shift solenoid "A" may also be known as 1-2/3-4 shift solenoid. Shift solenoid "B" may also be known as 2-3 shift solenoid.

Shift solenoids "A" and "B" are located on main valve body. (Scheme 35) Component testing information is not available.

Speed sensor is located on extension housing on rear of transmission. (Scheme 35) Speed sensor may be referred to as magnetic sensor. See appropriate SYSTEM & COMPONENT TESTS article in ENGINE PERFORMANCE.

The TP sensor is mounted on side of throttle body. See appropriate SYSTEM & COMPONENT TESTS article in ENGINE PERFORMANCE.

Torque Converter Clutch (TCC) solenoid is located on adapter case valve body. (Scheme 35) Component testing information is not available.

TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR

Disconnect TFT sensor electrical connector. Using a DVOM, measure resistance between sensor terminals. Replace sensor if resistance is not within specification. See TFT SENSOR RESISTANCE table. TFT sensor is located on wiring harness in adapter case oil pan. (Scheme 35)

TFT SENSOR RESISTANCE

WINTER mode switch is mounted on center console, near gearshift lever. Component testing information is not available.

Note. Shift lock cable is connected between gearshift lever and ignition switch. When gearshift lever is placed in "P" position, shift lock cable moves lock on ignition switch so ignition switch may be placed in LOCK position.

1. To check system operation, ensure gearshift lever cannot be moved from "P" position with ignition switch in LOCK position.
2. Ensure ignition switch can be turned to LOCK position only when gearshift lever is in "P" position. If operation is not as specified, adjust shift lock cable. See SHIFT LOCK CABLE ADJUSTMENT under ON-VEHICLE SERVICE in HYDRA-MATIC 4L30-E OVERHAUL (ACURA, HONDA & ISUZU) article.

Removal & Installation

Remove A/C compressor relay from fuse/relay box at passenger's side front corner of engine compartment. To install, reverse removal procedure.

Removal

1. Band apply solenoid is located on main valve body. (Scheme 35) Disconnect negative battery cable. Remove exhaust pipe (if necessary) to access main case oil pan. Remove bolts, main case oil pan, magnet and gasket. Remove bolts and oil filter. Disconnect electrical connectors at band apply solenoid.
2. Remove spring pin used to retain band apply solenoid in main valve body. Remove band apply solenoid and gasket from main valve body by pulling on metal tip. DO NOT pull on electrical connector housing on band apply solenoid.

Installation

To install, reverse removal procedure using NEW gaskets and oil filter. Ensure spring pin is fully seated in main valve body. Install and tighten oil filter and main case oil pan bolts to specification. See TORQUE SPECIFICATIONS . Fill transmission with Dexron-III ATF.

1. Disconnect electrical connector from brakelight switch located near brake pedal. Remove lock nut. Unscrew brakelight switch.
2. To install, screw brakelight switch inward until clearance between threaded end on brakelight switch and pedal is .020-.040" (.51-1.02 mm). Install and tighten lock nut. Connect electrical connector. Ensure brakelights and cruise control operate properly.

1. ECT sensor is located on coolant pipe at rear of cylinder head, and contains a Blue/Red wire and a Blue/Yellow wire in electrical connector.
2. Disconnect negative battery cable. Drain cooling system. It may be necessary to remove fuel inlet manifold for access to ECT sensor. Remove ECT sensor.

Apply thread sealant to threads of ECT sensor. Install and tighten ECT sensor to specification. See TORQUE SPECIFICATIONS . Fill cooling system.

Kickdown switch is located on accelerator pedal. Replacement information is not available.

1. Disconnect negative battery cable. Apply parking brake. Place gearshift lever in "N" position. Remove mode switch cover for access to mode switch located on side of transmission. (Scheme 35) Remove shift lever nut and disconnect shift lever from mode switch.
2. Remove bolts and heat protector from torque converter housing for access to wiring and mode switch. Remove air cleaner assembly. Disconnect mode switch harness connector. Remove clips for mode switch wiring. Remove mode switch retaining bolts and mode switch.

1. Install mode switch with retaining bolts. DO NOT tighten mode switch retaining bolts at this time. Mode switch must be adjusted. To adjust mode switch, rotate mode switch until slot in housing on mode switch aligns with selector shaft bushing. Insert a 3/32" punch into slot. (Scheme 39)
2. Tighten mode switch retaining bolts to specification. See «TORQUE SPECIFICATIONS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__torque-specifications). Install shift lever on mode switch and tighten shift lever nut to specification. Install mode switch cover on mode switch. Install heat protector. Install and tighten bolts to specification. Install air cleaner assembly.

Scheme 39

Ensure ignition is off. Disconnect negative battery cable. Remove front console. Disconnect PCM harness connectors. Remove PCM and brackets. To install, reverse removal procedure.

POWER mode switch is located on center console, near gearshift lever. Replacement information is not available.

1. Pressure control solenoid is located on adapter case valve body. (Scheme 35) Disconnect negative battery cable.
2. Remove exhaust pipe (if necessary) for access to adapter case oil pan. Remove bolts, adapter case oil pan and gasket. Disconnect electrical connectors at pressure control solenoid. Remove bolt and pressure control solenoid.

1. Install pressure control solenoid on adapter case valve body. Ensure pressure control solenoid is installed with electrical connector terminals facing upward, toward transmission.
2. Install and tighten pressure control solenoid bolt to specification. See «TORQUE SPECIFICATIONS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__torque-specifications) . Using a NEW gasket, install adapter case oil pan. Install and tighten bolts to specification. To install remaining components, reverse removal procedure. Fill transmission with Dexron-III ATF.

Note. Shift solenoid "A" may also be known as 1-2/3-4 shift solenoid. Shift solenoid "B" may also be known as 2-3 shift solenoid.

1. Shift solenoids "A" and "B" are located on main valve body. (Scheme 35) Disconnect negative battery cable. Remove exhaust pipe (if necessary) to access main case oil pan. Remove bolts, main case oil pan, magnet and gasket. Remove bolts and oil filter. Disconnect electrical connectors at appropriate shift solenoid.
2. Remove spring pin used to retain shift solenoid in main valve body. Remove shift solenoid and gasket from main valve body by pulling on metal tip. DO NOT pull on electrical connector housing on shift solenoid.

To install, reverse removal procedure using NEW gaskets and oil filter. Ensure spring pin is fully seated in main valve body. Install and tighten oil filter and main case oil pan bolts to specification. See TORQUE SPECIFICATIONS . Fill transmission with Dexron-III ATF.

1. Disconnect negative battery cable. Remove front console and gear selector lever assembly. Disconnect electrical connector at speed sensor located on extension housing on rear of transmission. (Scheme 35) Remove speed sensor bolt, speed sensor and "O" ring.
2. To install, reverse removal procedure using a NEW "O" ring. Install and tighten speed sensor bolt to specification. See «TORQUE SPECIFICATIONS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__torque-specifications).

1. Disconnect harness connector at TP sensor mounted on side of throttle body. Remove TP sensor bolts and TP sensor.
2. To install, ensure throttle is closed. Install TP sensor on throttle body and throttle shaft. Align TP sensor with bolt holes. Install and tighten TP sensor bolts to specification. See «TORQUE SPECIFICATIONS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__torque-specifications) . Install harness connector.

1. The TCC solenoid is located on adapter case valve body. (Scheme 35) Disconnect negative battery cable.
2. Remove exhaust pipe (if necessary) to access adapter case oil pan. Remove bolts, adapter case oil pan and gasket. Disconnect electrical connector at TCC solenoid. Remove bolt, TCC solenoid and "O" ring.

1. Using a NEW "O" ring, install TCC solenoid on adapter case valve body. Install and tighten TCC solenoid bolt to specification. See «TORQUE SPECIFICATIONS»(/acura/slx/i-1995-1999/remont/automatic-trans/#diagnosis-4l30-e__torque-specifications) .
2. Using a NEW gasket, install adapter case oil pan. Install and tighten bolts to specification. To install remaining components, reverse removal procedure. Fill transmission with Dexron-III ATF.

1. Raise and support vehicle. Disconnect negative battery cable. Drain transmission fluid. NOTE: Transmission still contains fluid. Place a large pan under transmission adapter case.
2. Remove adapter case oil pan bolts, pan and gasket.
3. Disconnect harness from force motor solenoid, converter clutch solenoid, and 5-pin connector on adapter case. Disconnect ground wire from converter clutch solenoid connector. Remove wire harness assembly which contains transmission oil temperature sensor. (Scheme 35)
4. For installation, reverse removal procedure. Using a NEW gasket, install adapter case oil pan. Install and tighten bolts to specification. Fill transmission with Dexron-III ATF.

WINTER mode switch is located on center console, near gearshift lever. Replacement information is not available.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Shift Interlock System Wiring Diagram (1997 SLX & Trooper). Scheme 40

Shift Interlock System Wiring Diagram (1998 SLX). Scheme 41

Shift Interlock System Wiring Diagram (1998 Trooper). Scheme 42

Transmission Wiring Diagram (1997 SLX). Scheme 43

Transmission Wiring Diagram (1998 SLX). Scheme 44

Transmission Wiring Diagram (1997 Trooper). Scheme 45

Transmission Wiring Diagram (1998 Trooper). Scheme 46

See also:
• POWERTRAIN CONTROL MODULE (PCM)
• SHIFT MODES
• SHIFT & KEY LOCK SYSTEMS
• PCM DIAGNOSTIC TROUBLE CODES
• CHECK TRANS LIGHT TEST
• DIAGNOSTIC TESTS
• P0751
• P0753
• P0756
• P0758
• DIAGNOSTIC AIDS
• RETRIEVING DIAGNOSTIC TROUBLE CODES
• TORQUE SPECIFICATIONS