Mitsubishi Grandis. Manual — part 846
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-51
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the defective connector.
STEP 11. Check the harness between stop lamp
switch connector C-127 terminal No.1 and
engine-A/T-ECU connector C-111 terminal No.39.
Check the output line for short or open circuit.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the wiring harness.
STEP 12. Connector check: C-125 intermediate
connector
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 13.
NO :
Repair the defective connector.
STEP 13. Check the harness between stop lamp
switch connector C-127 terminal No.2 and
battery.
Check the power supply line for short or open circuit.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the wiring harness.
AC309520AD
Connector: C-127
Harness side
Brake pedal
4
3
2
1
AC311284AH
Connector: C-111 <LHD>
Connector: C-111 <RHD>
Harness side
Engine-A/T-ECU
C-111 (GR)
C-111 (GR)
45
52
35
42 41
43
51
58
50
57
33
34
36
403938 37
47
55
48
56
44
49
46
54
3231
53
Engine-A/T-ECU
AC310613
AZ
Connector: C-125 <LHD>
C-125
38
1213
11
26
14
1
20
6
232425
37
31
36
30
10
9
2122
35
8
7
34
17
29
1819
5
4
1516
33
28
32
27
3
2
AC310628
Connector: C-125 <RHD>
C-125
AU
38
1213
11
26
14
1
20
6
232425
37
31
36
30
10
9
2122
35
8
7
34
17
29
1819
5
4
1516
33
28
32
27
3
2
AC309520AD
Connector: C-127
Harness side
Brake pedal
4
3
2
1
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-52
Code No.27: Inhibitor switch system
ENGINE-
A/T-ECU
INHIBITOR
SWITCH
SELECT
SWITCH
SHIFT
SWITCH
SHIFT
SWITCH
ASSEMBLY
IGNITION
SWITCH(IG1)
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Inhibitor switch system circuit <LHD>
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-53
OPERATION
The inhibitor switch detects the selector lever
position (P, R, N or D) which the driver has selected,
and sends the information to the engine-A/T-ECU.
DIAGNOSIS CODE SET CONDITIONS
If the inhibitor switch has not been sending any
signal for at least 30 seconds, an open circuit may be
present and dianosis code No.27 will be set.
AC312596AB
ENGINE-
A/T-ECU
INHIBITOR
SWITCH
SELECT
SWITCH
SHIFT
SWITCH
SHIFT
SWITCH
ASSEMBLY
IGNITION
SWITCH(IG1)
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Inhibitor switch system circuit <RHD>
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-54
POSSIBLE CAUSES
• Malfunction of the inhibitor switch
• Damaged harness wires and connectors
• Malfunction of the engine-A/T-ECU
DIAGNOSIS
STEP 1. MUT-III data list
Item 61: Inhibitor switch (Refer to data list reference
table
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
Malfunction
).
NO <none of the selector lever positions are
displayed on MUT-III> :
Go to Step 2.
NO <only one of the selector lever positions is not
displayed on MUT-III> :
Go to Step 6.
STEP 2. Check the inhibitor switch.
Refer to
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the inhibitor switch.
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