Mitsubishi Grandis. Manual — part 860
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-107
STEP 10. Check the shift switch assembly.
Refer to
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Replace the shift switch assembly.
STEP 11. Connector check: C-121 shift switch
assembly connector
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Repair the defective connector.
STEP 12. Measure the voltage at shift switch
assembly connector C-121
(1) Disconnect the connector, and measure the
voltage between terminal 1 and earth at the
wiring harness side.
(2) Selector lever position: D
(3) Ignition switch: ON
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 13.
NO :
Go to Step 15.
AC310613
BA
C-121
Connector: C-121
<LHD>
Harness side
AC310631AW
C-121
Harness side
Connector: C-121
<RHD>
AC310613
BA
C-121
Connector: C-121
<LHD>
Harness side
AC310631AW
C-121
Harness side
Connector: C-121
<RHD>
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-108
STEP 13. Connectors check: C-112
engine-A/T-ECU connector
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 14.
NO :
Repair the defective connector.
STEP 14. Check the harness between shift switch
assembly connector C-121 terminal No.4 and
engine-A/T-ECU connector C-112 terminal No.85.
Check the output line for short-circuited or open
circuit.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the wiring harness.
AC311284
Connector: C-112 <LHD>
Connector: C-112 <RHD>
Harness side
Engine-A/T-ECU
C-112 (GR)
C-112 (GR)
Engine-A/T-ECU
AG
AC310613
BA
C-121
Connector: C-121
<LHD>
Harness side
AC310631AW
C-121
Harness side
Connector: C-121
<RHD>
AC311284
Connector: C-112 <LHD>
Connector: C-112 <RHD>
Harness side
Engine-A/T-ECU
C-112 (GR)
C-112 (GR)
Engine-A/T-ECU
AG
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-109
STEP 15. Connector check: C-17 intermediate
connector
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 16.
NO :
Repair the defective connector.
STEP 16. Check the harness between shift switch
assembly connector C-121 terminal No.1 and
inhibitor switch connector B-111 terminal No.1.
Check the power supply line for short or open circuit.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the wiring harness.
STEP 17. Check the shift switch assembly.
Refer to
Q: Is the check result normal?
YES :
Go to Step 18.
NO :
Replace the shift switch assembly.
AC310615
AR
Connector: C-17
<LHD>
C-17
AC310628
Connector: C-17
<RHD>
AV
C-17
AC310613
BA
C-121
Connector: C-121
<LHD>
Harness side
AC310631AW
C-121
Harness side
Connector: C-121
<RHD>
AC303714AH
Connector: B-111
B-111 (B)
Harness side
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-110
STEP 18. Connectors check: C-121 shift switch
assembly connector, C-112 engine-A/T-ECU
connector, C-17 intermediate connector
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