DTC P1780 PARK/NEUTRAL POSITION SWITCH MALFUNCTION

Transcription

1 0540 DIAGNOSTICS ELECTONIC CONTOLLED AUTOMATIC TANSAXLE [ECT] (A46E) DTC P780 PAK/NEUTAL POSITION SITCH MALFUNCTION 057XT0 PAK/NEUTAL POSITION SITCH CICUIT CICUIT DESCIPTION The park/neutral position switch detects the shift lever position and sends the signals to the ECM. The ECM receives the signals (NS,, and L) from the park/neutral position switch when the signal is not sent to the ECM from the park/neutral position switch, the ECM judges that the shift lever is in the D position. DTC No. DTC Detecting Condition Trouble Area or more switches are ON simultaneously for N,, or L position. (trip detection logic) P780 hen driving under the conditions (a), (b) and (c) for 30 seconds or more, the park/neutral position switch is ON (N position). (trip detection logic) (a) Vehicle speed: 80 km/h (50 mph) or more (b) Engine speed:,500 5,000 rpm (c) Manifold absolute pressure: 300 mmhg or more ire harness Park/neutral position switch assy ECM 60

2 DIAGNOSTICS ELECTONIC CONTOLLED AUTOMATIC TANSAXLE [ECT] (A46E) 054 IING DIAGAM B P Park/Neutral Position S 6 9 LGB LL 8 LG L 4 IG 5 IG A J6 G J6 A J6 J/C G J6 G J6 E J5 To ST elay B LGB LG 9 E4 8 E4 8 E5 STA NS L 9 E5 ECM 3 B H J/B 3 B B L IG3 4 IG3 B B J3 J/C IG3 A Engine oom J/B and /B B FL MAIN Battery ALT MAIN I Ignition S J J/C D C IE A 4 ST 3 3A 0 3B AM 5 B B BY IG AM B IA5 BY 3A 3B B B 9 IK E5 B Instrument Panel J/B IG IA IF IF 6 IM B B GAUGE IG elay 5 AM AM 3 0 IK 4 IF IB 3 IM C

3 054 DIAGNOSTICS INSPECTION POCEDUE ELECTONIC CONTOLLED AUTOMATIC TANSAXLE [ECT] (A46E) EAD VALUE OF OBD II SCAN TOOL O HANDHELD TESTE (a) arm up the engine. (b) Turn the ignition switch OFF. (c) Connect the OBD II scan tool or Handheld tester to the DLC3. (d) Turn the ignition switch ON and push the OBD II scan tool or Handheld tester main S ON. (e) Shift the shift lever to the P,, N, and L positions, select the item PNP S (NS), EVESE, ND and LO in the DATALIST and read its value displayed on the OBD II scan tool or Handheld tester. NOTICE: The values given below for Normal Condition are representative values, so a vehicle may still be normal even if its value differs from those listed here. Do not depend solely on the Normal Condition here when deciding whether or not the part is faulty. NG Item PNP S [NS] LO ND EVESE Measurement Item/ Display (ange) PNP S Status/ ON or OFF PNP S Status/ ON or OFF PNP S Status/ ON or OFF PNP S Status/ ON or OFF Normal Condition Shift lever position is; P or N: ON Except P or N: OFF Shift lever position is; L: ON Except L: OFF Shift lever position is; : ON Except : OFF Shift lever position is; : ON Except : OFF INSPECT PAK/NEUTAL POSITION SITCH ASSY Diagnostic Note The shift lever position and these values are different, there are fail- ures of the PNP switch or shift cable adjustment. OK CHECK AND EPLACE ECM(See page 034) (a) (b) Disconnect the park/neutral position switch connector. Check continuity between each terminal shown below when the shift lever is moved to each position. D0660 NG Shift Position Terminal No. to continuity P N D L 3 8 OK: There is continuity. EPLACE PAK/NEUTAL POSITION SITCH ASSY(See page 403) OK 6

4 DIAGNOSTICS ELECTONIC CONTOLLED AUTOMATIC TANSAXLE [ECT] (A46E) CHECK HANESS AND CONNECTO(PAK/NEUTAL POSITION SITCH ECM) E NS L C969 (a) (b) (c) (d) (e) Connect the park/neutral position switch connector. Disconnect the ECM connector. Turn the IG switch ON and measure the voltage between terminals, and L of ECM and the E when the shift lever is shifted to the following position. OK: Shift Position Terminal Voltage (V) E 0 4 E 0 4 L L E 0 4 Turn the IG switch OFF and connect the ECM connector. Turn the IG switch ON and measure the voltage between terminals NS of ECM and the E when the shift lever is shifted to the following position. OK: Shift Position Terminal Voltage (V) P NS E Below N NS E Below Except P and N NS E 0 4 NG EPAI O EPLACE HANESS O CONNECTO(See page 034) OK CHECK AND EPLACE ECM(See page 034) 63

5 AUTOMATIC TANSMISSION / TANS EPLACEMENT. EMOVE BATTEY MO0. EMOVE BATTEY CAIE (a) emove the 4 bolts and battery carrier. 3. DISCONNECT FLOO SHIFT CABLE TANSMISSION CONTOL SHIFT (a) emove the nut from the control shaft lever. (b) Disconnect the control cable from the control shaft lever. C8059 (c) A46E/U34F: emove the clip and disconnect the control cable from the bracket. C8535 (d) (e) U40E: Push the claw of the clip and disconnect the control cable from the bracket. U40E: emove the clip from the bracket. D

6 404 AUTOMATIC TANSMISSION / TANS A46E: 4. EMOVE PAK/NEUTAL POSITION SITCH ASSY (a) Disconnect the park/neutral position switch connector. (b) emove the nut, washer and control shaft lever. (c) Pry out the lock plate and remove the manual valve shaft nut. (d) emove the bolts and pull out the park/neutral position switch. U40E: U34F: D54 D09644 C6707 C INSTALL PAK/NEUTAL POSITION SITCH ASSY (a) A46E: () Install the park/neutral position switch to the manual valve shaft. () Temporarily install the bolts. (3) Place a new lock plate and tighten the nut. Torque: 5.5 N m (56 kgf cm, 49 in. lbf) (4) Temporarily install the control shaft lever. D09957 (5) Turn the lever counterclockwise until it stops, then turn it clockwise notches. (6) emove the control shaft lever. D56 974

7 AUTOMATIC TANSMISSION / TANS 405 Neutral Basic Line (7) Align the groove with neutral basic line. (8) Hold the switch in position and tighten the bolts. Torque: 5.5 N m (56 kgf cm, 49 in. lbf) Groove D08584 (9) Using a screwdriver, stake the nut with the lock plate. D08585 (0) Install the control shaft lever, washer and nut. Torque:.5 N m (7 kgf cm, 9 ft lbf) () Connect the park/neutral position switch connector. D55 (b) U40E: () Install the park/neutral position switch to the manual valve shaft. () Temporarily install the bolts. (3) Place a new lock plate and tighten the nut. Torque: 6.9 N m (70 kgf cm, 6 in. lbf) (4) Temporarily install the control shaft lever. D09639 (5) Turn the lever counterclockwise until it stops, then turn it clockwise notches. (6) emove the control shaft lever. D

8 406 AUTOMATIC TANSMISSION / TANS Neutral Basic Line (7) Align the groove with neutral basic line. (8) Hold the switch in position and tighten the bolts. Torque: 5.4 N m (55 kgf cm, 48 in. lbf) Groove D553 (9) Using a screwdriver, stake the nut with the lock plate. D09643 (0) Install the control shaft lever, washer and nut. Torque:.7 N m (30 kgf cm, 9 ft lbf) () Connect the park/neutral position switch connector. D09644 (c) U34F: () Install the park/neutral position switch to the manual valve shaft. () Temporarily install the bolts. (3) Place a new lock plate and tighten the nut. Torque: 6.9 N m (70 kgf cm, 6 in. lbf) (4) Temporarily install the control shaft lever. C6665 (5) Turn the lever counterclockwise until it stops, then turn it clockwise notches. (6) emove the control shaft lever. C

9 AUTOMATIC TANSMISSION / TANS 407 Neutral Basic Line (7) Align the groove with neutral basic line. (8) Hold the switch in position and tighten the bolts. Torque: 5.4 N m (55 kgf cm, 48 in. lbf) Groove D55 (9) Using a screwdriver, stake the nut with the lock plate. C6669 (0) Install the control shaft lever, washer and nut. Torque:.7 N m (30 kgf cm, 9 ft lbf) () Connect the park/neutral position switch connector. 6. INSTALL FLOO SHIFT CABLE TANSMISSION CONTOL SHIFT (a) Temporarily install the control cable to the control shaft lever with nut. D09956 (b) A46E/U34F: Install the control cable with the clip to the bracket. NOTICE: Insert the cable securely. C8535 (c) U40E: Install a new clip to the bracket. (d) U40E: Connect the control cable to the bracket. NOTICE: Insert the cable securely. C

10 408 AUTOMATIC TANSMISSION / TANS 7. INSTALL BATTEY CAIE (a) Install the battery carrier and 4 bolts. Torque: 3 N m (3 kgf cm, 0 ft lbf) C ADJUST SHIFT LEVE POSITION (See page 4087) 9. INSPECT SHIFT LEVE POSITION (See page 4087) 0. INSPECT PAK/NEUTAL POSITION SITCH ASSY (See page 409) 978