Mitsubishi Lancer Evolution X. Manual — part 607
DIAGNOSIS <SHIFT LEVER>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-385
STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C −
Troubleshooting
.) After repairing the CAN
bus line, go to Step 2.
STEP 2. Paddle shift switch check
Refer to
.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the paddle shift assembly. (Refer to
.)
STEP 3. Measure the resistance at C-207 paddle shift
switch connector.
Disconnect the connector, and measure the resistance
between terminal No.2 and ground at the wiring harness side.
OK: Continuity exists. (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 6.
NO : Go to Step 4.
STEP 4. Paddle shift switch connector check: C-207
Check for the contact with terminals.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the defective connector.
STEP 5. Check the wiring harness between C-207 paddle
shift switch connector terminal No. 2 and the body ground.
Check the ground line for open circuit.
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
STEP 6. Inspection of the shift lever assembly connector,
intermediate connector, and paddle shift switch connector:
C-27, C-130, C-207
Check for the contact with terminals.
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair the defective connector.
DIAGNOSIS <SHIFT LEVER>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-386
STEP 7. Check the wiring harness between C-207 paddle
shift switch connector terminal No. 1 and C-27 shift lever
assembly connector terminal No. 11, and between C-207
paddle shift switch connector terminal No. 3 and C-27 shift
lever assembly connector terminal No. 10.
Check the output line for short or open circuit.
Q: Is the check result normal?
YES : Go to Step 8.
NO : Repair the wiring harness.
STEP 8. Trouble symptom recheck after replacing the shift
lever assembly
(1) Replace the shift lever assembly. (Refer to
.)
(2) Verify that the condition described by the customer exists.
Q: Does a malfunction take place again?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DIAGNOSIS <SHIFT LEVER>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-387
INSPECTION PROCEDURE 6: Shift lever-ECU power supply circuit abnormality
IGNITION
SWITCH (IG1)
ETACS-ECU
IG1
RELAY
SHIFT
LEVER
CPU
ENGINE
COMPARTMENT
RELAY
BOX
FUSIBLE
LINK
36
FUSIBLE
LINK
34
Power supply system circuit
DIAGNOSIS <SHIFT LEVER>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-388
CAUTION
Whenever the ECU is replaced, ensure that the
CAN bus lines are normal.
.
COMMENTS ON TROUBLE SYMPTOM
The shift lever-ECU power supply circuit, ground cir-
cuit, or shift lever-ECU may have a problem.
.
PROBABLE CAUSES
• Defective battery
• Damaged harness wires and connectors
• Malfunction of the ETACS-ECU
• Malfunction of the shift lever-ECU
DIAGNOSTIC PROCEDURE
STEP 1. Check the battery.
Refer to GROUP 54A − Battery Test
.
Q: Is the battery in good condition?
YES : Go to Step 2.
NO : Charge or replace the battery.
STEP 2. Measure the resistance at C-27 shift lever-ECU
connector.
Disconnect the connector, and measure the resistance
between terminal No. 8 and ground at the wiring harness side.
OK: Continuity exists. (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Go to Step 3.
STEP 3. Shift lever-ECU connector check: C-27
Check for the contact with terminals.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the defective connector.
AC705170AM
Connector: C-27
AC708950
Connector: C-131
CN
AC708972BI
Connectors: C-309, C-317
C-309 (B)
C-317
ETACS-ECU
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