home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
AOL File Library: 4,101 to 4,200
/
aol-file-protocol-4400-4101-to-4200.zip
/
AOLDLs
/
Shareware Demos
/
TRANSDOC_ Automatic Transmission
/
VTDA4LD.exe
/
KM175.TDS
next >
Wrap
Text File
|
1999-04-07
|
16KB
|
262 lines
KM175 TROUBLE GUIDE MENU
════════════════════════
1) WARNINGS - TRAPS 2) Powerflow and Solenoid chart
3) Fault Codes 4) Pressure Testing
5) No move - Forward or Reverse 6) No Forward - Reverse OK
7) No Reverse - Forward OK 8) Slips in Drive
9) Reverse slips 10) Stall speed too low
11) Engine kills in "D" or "R" 12) Moves in "P" or "N"
13) Harsh engagements 14) No shifts
15) No 2-3 shift 16) No 3-4 shift
17) OD switch won't function 18) Abnormal shift pattern
19) Higher than 1st gear starts 20) Harsh 1-2 or 3-4
21) Harsh 2-3 or 3-4 22) Harsh 3-2 downshift
23) Engine flare on upshifts 24) No Lockup
25) 3rd gear only in Forward ranges 26) No converter fill
27) Neutrals on 3-4 shift
û
KM175 TROUBLE GUIDE 1
═════════════════════
WARNINGS - TRAPS
No converter fill can be caused by use of wrong pump gasket. This can
also be caused by a stuck damper clutch control valve. Both of these
should get checked during assembly.
û
╒══════╤════╤════╤════╤════╤════╤════╤════╤═══════════╕
│RANGE │REAR│ OW │2-4 │BAND│FRNT│END │LO/R│ SOLENOIDS │
│ │CLTH│SPRG│BAND│RELS│CLTH│CLTH│CLTH│ "A" │ "B" │
Mitsubishi ╞══════╪════╪════╪════╪════╪════╪════╪════╪═════╪═════╡
4 Speeds │ Park │ │ │ │ │ │ │ │ Off │ On │
Power Flow ╞══════╪════╪════╪════╪════╪════╪════╪════╪═════╪═════╡
│ Rev │ │ │ │ On │ On │ │ On │ Off │ On │
╞══════╪════╪════╪════╪════╪════╪════╪════╪═════╪═════╡
│Neutrl│ │ │ │ │ │ │ │ Off │ On │
Solenoids are ╞══════╪════╪════╪════╪════╪════╪════╪════╪═════╪═════╡
Normally closed │D /1st│ On │Hold│ │ │ │ │ │ On │ On │
To exhaust │ 2nd│ On │ │ On │ │ │ │ │ On │ Off │
│ 3rd│ On │ │ │ On │ On │ │ │ Off │ Off │
When "ON" They │ 4th│ │ │ On │ │ │ On │ │ On │ Off │
Open To dump ╞══════╪════╪════╪════╪════╪════╪════╪════╪═════╪═════╡
│Lo/1st│ On │Help│ │ │ On │ │ On │ On │ On │
╘══════╧════╧════╧════╧════╧════╧════╧════╧═════╧═════╛
Damper clutch control solenoid is normally closed which causes a pressure
build which keeps the converter unlocked -"ON" opens dump to allow Lockup
û
FAULT CODES Page 1 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
1 ║ TCU malfunction ║ NO ║ Low power of bad controller
══════╬═════════════════════════════╬══════╬══════════════════════════════════
2 ║ 1st gear signal at high ║ NO ║ Pulse generator "B"
║ speed ║ ║ VSS or TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
3 ║ Speed detected by pulse gen.║ NO ║ Pulse generator "B" - VSS
║ "B" higher then actual spd. ║ ║ TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
4 ║ Solenoid "A" differs from ║ NO ║ Shift solenoid "A"
║ computer command ║ ║ TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
5 ║ Solenoid "B" differs from ║ NO ║ Shift solenoid "B"
║ computer command ║ ║ TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
6 ║ KD servo signal differs ║ NO ║ Kickdown switch - EPC solenoid
║ from gear ║ ║ TCU
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 2 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
7 ║ Shifting doesn't finish ║ NO ║ Pulse generator "A"
║ ║ ║ EPC - TCU - internal problem
══════╬═════════════════════════════╬══════╬══════════════════════════════════
8 ║ EPC drive differs from ║ NO ║ Poor trans ground
║ computer command ║ ║ EPC solenoid - TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
9 ║ DCC solenoid is directly ║ NO ║ Damper clutch control system
║ connected ║ ║ TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
10 ║ No ignition signal ║ NO ║ Ignition signal system
║ ║ ║ COIL - TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
11 ║ TCU malfunction ║ YES ║ When code 31 is generated
║ computer command ║ ║ for 4th time
══════╬═════════════════════════════╬══════╬══════════════════════════════════
12 ║ 1st gear command during ║ YES ║ When code 32 is generated
║ high speed driving ║ ║ for 4th time
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 3 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
13 ║ Pulse generator "B" ║ YES ║ When code 33 is generated
║ wiring damage or disconnect ║ ║ for 4th time
══════╬═════════════════════════════╬══════╬══════════════════════════════════
14 ║ Damaged wiring or short in ║ YES ║ When code 41 or 42 is
║ solenoid "A" circuit ║ ║ generated for 4th time
══════╬═════════════════════════════╬══════╬══════════════════════════════════
15 ║ Damaged wiring or short in ║ YES ║ When code 43 or 44 is
║ solenoid "B" circuit ║ ║ generated for 4th time
══════╬═════════════════════════════╬══════╬══════════════════════════════════
16 ║ Damaged wiring or short in ║ YES ║ When code 45 or 46 is
║ EPC solenoid circuit ║ ║ generated for 4th time
══════╬═════════════════════════════╬══════╬══════════════════════════════════
17 ║ Shifts steps out of sync ║ YES ║ When code 51, 52, 53, or 54 is
║ with computer command ║ ║ generated for 4th time
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 4 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
21 ║ Abnormal increase of TPS ║ ║
║ output ║ ║ TPS connection
══════╬═════════════════════════════╬══════╣ TPS adjustment
22 ║ Abnormal decrease of TPS ║ ║ Bad TPS
║ output ║ ║ Accelerator switch see Code 28
══════╬═════════════════════════════╬══════╣ TPS output circuit
23 ║ Incorrect adjustment of ║ ║
║ TPS system ║ ║
══════╬═════════════════════════════╬══════╬══════════════════════════════════
24 ║ Disconnected or damaged ║ ║ TOT wiring harness or connector
║ wiring - oil temp sensor ║ ║ TOT sensor
══════╬═════════════════════════════╬══════╬══════════════════════════════════
25 ║ Disconnected or damaged ║ ║
║ wiring - KD switch system ║ ║ KD switch wiring harness
══════╬═════════════════════════════╬══════╣ KD switch connector
26 ║ Short circuit of the ║ ║ Bad kickdown switch
║ KD switch system ║ ║
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 5 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
27 ║ Damaged or disconnected ║ ║ Ignition pulse signal line
║ Ignition pulse pickup system║ ║
══════╬═════════════════════════════╬══════╬══════════════════════════════════
28 ║ Short in accelerator switch ║ ║ Check harness & connector
║ system or misadjusted ║ ║ bad accelerator switch
══════╬═════════════════════════════╬══════╬══════════════════════════════════
31 ║ Bad microprocessor ║ ║ TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
32 ║ 1st gear command during ║ YES ║ Check TPS
║ high speed driving ║ ║ TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
33 ║ Damaged or disconnected ║ YES ║ VSS - gen. "B" wiring
║ wiring - pulse gen. "B" ║ ║ bad pulse gen. "B"
══════╬═════════════════════════════╬══════╬══════════════════════════════════
41 ║ Damaged or disconnected ║ YES ║ Wiring harness or connector
║ wiring - shift solenoid "A" ║ ║ bad shift solenoid "A"
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 6 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
42 ║ Short circuit in shift ║ YES ║ Wiring harness or connector
║ solenoid "A" system ║ ║ bad shift solenoid "A"
══════╬═════════════════════════════╬══════╬══════════════════════════════════
43 ║ Damaged or disconnected ║ YES ║
║ Wiring - shift solenoid "B" ║ ║ Wiring harness or connector
══════╬═════════════════════════════╬══════╣ bad shift solenoid "B"
44 ║ Short - shift solenoid "B" ║ YES ║
══════╬═════════════════════════════╬══════╬══════════════════════════════════
45 ║ Damaged or disconnected ║ YES ║
║ wiring - EPC system ║ ║ Wiring harness or connector
══════╬═════════════════════════════╬══════╣ bad EPC solenoid
46 ║ Damaged or disconnected ║ YES ║
║ wiring - EPC system ║ ║
══════╬═════════════════════════════╬══════╬══════════════════════════════════
47 ║ Damaged or disconnected ║ YES ║ Wiring harness or connector
║ wiring - DCC solenoid ║ ║ bad damper clutch control slnd.
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 7 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
48 ║ Short circuit damper clutch ║ YES ║ Wiring harness or connector
║ control solenoid ║ ║ bad DCC solenoid
══════╬═════════════════════════════╬══════╬══════════════════════════════════
49 ║ Malfunction of damper ║ YES ║ Wiring harness or connector
║ clutch system ║ ║ VB problem - DCC solenoid - TCU
══════╬═════════════════════════════╬══════╬══════════════════════════════════
║ ║ ║ Wiring harness or connectors or
51 ║ 1st gear nonsynchronous ║ YES ║ bad pulse gen. "A" or "B"
║ ║ ║ slippage of kickdown band
══════╬═════════════════════════════╬══════╬══════════════════════════════════
║ ║ ║ Wiring harness or connector or
52 ║ 2nd gear nonsynchronous ║ YES ║ bad pulse gen. "A"
║ ║ ║ slippage of kickdown band
══════╩═════════════════════════════╩══════╩══════════════════════════════════
ÿ
FAULT CODES CONTINUED Page 8 of 8
══════╦═════════════════════════════╦══════╦══════════════════════════════════
CODE ║ INDICATES ║ LIMP ║ PROBABLE CAUSES
══════╬═════════════════════════════╬══════╬══════════════════════════════════
║ ║ ║ Wiring harness or connectors or
53 ║ 3rd gear nonsynchronous ║ YES ║ bad pulse gen. "A" or "B"
║ ║ ║ slippage of front or rear clutch
══════╬═════════════════════════════╬══════╬══════════════════════════════════
║ ║ ║ Wiring harness or connector or
54 ║ 4th gear nonsynchronous ║ YES ║ bad pulse gen. "A"
║ ║ ║ slippage of kickdown band
══════╩═════════════════════════════╩══════╩══════════════════════════════════
û
KM175 TROUBLE GUIDE 4 Page 1 of 2
═════════════════════
Pressure Testing
On the engine end of the trans case just above the pan flange and around
the bellhousing, there are 4 test ports. From left to right they are,
Kickdown (KD) brake, Reducing pressure, Torque converter, Front clutch.
On the front surface of the case about centered is the L/R brake pressure
test port. The end clutch port is on the end clutch cover.
Have trans fluid up to normal operating temperature. Raise car so wheels
are free - Connect tach to engine - Install appropriate pressure gauge in
port(s) that are to be tested. Run tests using Range selection, speed,
and RPM in specification chart.
Pressure specifications on Page 2
ÿ
Pressure Specifications Page 2 of 2
╒══════╤═════╤═════╤═════╤═════╤═══════╤═══════╤═══════╤═══════╤═════╕
│Select│Wheel│ Eng │Trans│Reduc│ KD │ Frnt │ End │ L/R │Torq │
│Range │Speed│ RPM │Gear │press│ Brake │ Cltch │ Cltch │ Brake │ Conv│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ N │ 0 │Idle │ --- │51-70│ --- │ --- │ --- │ --- │50-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ D4 │ 0 │Idle │ 2nd │51-70│ 14-30 │ --- │ --- │ --- │50-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ D4 │ 68 │2500 │ 4th │51-70│118-128│ --- │118-128│ --- │56-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ D3 │ 47 │2500 │ 3rd │51-70│118-128│118-128│118-128│ --- │56-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ 2 │ 31 │2500 │ 2nd │51-70│118-128│ --- │ --- │ --- │56-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ L │ 0 │1000 │ 1st │51-70│ --- │ --- │ --- │ 43-63 │50-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ Rev │ 22 │2500 │ Rev │51-70│ --- │233-318│ --- │233-318│56-84│
╞══════╪═════╪═════╪═════╪═════╪═══════╪═══════╪═══════╪═══════╪═════╡
│ Rev │ 0 │1000 │ Rev │51-70│ --- │ 213 + │ --- │ 213 + │56-84│
╘══════╧═════╧═════╧═════╧═════╧═══════╧═══════╧═══════╧═══════╧═════╛
û