HOW TO READ DATA LIST
Required Special Tools
- MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A
- Connect scan tool MB991958 to the data link connector.
- Turn the ignition switch to the "ON" position.
- Select "System Select" from the start-up screen.
- Select "From 2006 MY" of "Model Year." When the "Vehicle Information" is displayed, check the contents.
- "Select "AUTO CRUISE" from "System List", and press the "OK" button. NOTE: When the "Loading Option Setup" list is displayed, check the applicable item.
- Select the "MITSUBISHI."
- Select the "Data List." NOTE: When the "Data List Reference Table" button is selected, the service data reference table is displayed, and the normal values can be checked.
Check Condition
- The "CRUISE" indicator light illuminates.
Judgment Criteria
- This DTC is set when the ECM terminal voltage is different from the standard value.
- Or, this DTC is set when the "COAST/SET" switch or "ACC/RES" switch is stuck to ON.
- The "CRUISE" indicator light illuminates.
- Open/short in stoplight switch circuit.
- Open circuit in the brake switch circuit (between ECM connector B-10 terminal number 108 and body ground).
- Malfunction of CAN bus line.
COMMENT
- Malfunction of CAN bus line.
- The stoplight switch circuit is suspected.
The cause is probably a malfunction of the clutch switch circuit.
- Malfunction of CAN bus line.
- Malfunction of shift lever system.
The cause is probably an open-circuit in the output circuit inside the "CANCEL" switch.
- The fail-safe function is probably canceling cruise control system. In this case, checking the cruise control system, MFI system, shift lever system, TC-SST system, ASC system and CAN bus line system DTCs. The scan tool MB991958 can also be used to check if the circuits of each input switch are normal or not by checking the data list.
- In addition, if the option coding data written into the ECM is not normal, the cruise control system does not work.
Note. Press the cruise control switches one by one securely. Otherwise, the cruise control system may not be started.
- The wheel speed sensor signal (vehicle speed signal) or the MFI system is suspected.
- The wheel speed sensor signal (vehicle speed signal) is transmitted from the ASC-ECU to the ECM via CAN bus line.
- The CAN bus line between the ECM and the ETACS-ECU and between the ETACS-ECU and the combination meter may be defective.
- The combination meter, ETACS-ECU or ECM may also be defective.
DATA LIST REFERENCE TABLE
| CAUTION | Driving tests always need two people: one driver and one observer. |
| Scan tool display | Item number | Inspection item | Inspection requirement | Normal condition | |
|---|---|---|---|---|---|
| Brake light switch | 74 | Stoplight switch (for stoplight circuit) | Ignition switch: "ON" | Brake pedal: Depressed | ON |
| Brake pedal: Released | OFF | ||||
| Cancel code | 57 | Cancel code | Ignition switch: "ON" | The cancel code, which set when the cruise control system was cancelled at the last time. | |
| Cancel switch | 75 | Cruise control switch ("CANCEL" switch) | Ignition switch: "ON" | "CANCEL" switch: Pressed | ON |
| "CANCEL" switch: Released | OFF | ||||
| Clutch switch | 78 | Clutch switch | Ignition switch: "ON" | Clutch pedal: Depressed | ON |
| Clutch pedal: Released | OFF | ||||
| Cruise switch | 81 | Cruise control system operation | Cruise control system: active | ON | |
| Cruise control system: Inactive | OFF | ||||
| Main switch | 86 | Cruise control switch ("ON/OFF" switch) | Ignition switch: "ON" | "ON/OFF" switch: Pressed | ON |
| "ON/OFF" switch: Pressed again | OFF | ||||
| Neutral switch | 88 | Shift lever position | Ignition switch: "ON" | Shift lever: "N", "P", "R" position | ON |
| Shift lever: Other than "N", "P", "R" position | OFF | ||||
| Normally closed brake switch | 89 | Stoplight switch (for Cruise control circuit) | Ignition switch: "ON" | Brake pedal: Depressed | ON |
| Brake pedal: Released | OFF | ||||
| Resume switch | 91 | Cruise control switch ("ACC/RES" switch) | Ignition switch: "ON" | "ACC/RES" switch: Pressed | ON |
| "ACC/RES" switch: Released | OFF | ||||
| Set switch | 92 | Cruise control switch ("COAST/SET" switch) | Ignition switch: "ON" | "COAST/SET" switch: Pressed | ON |
| "COAST/SET" switch: Released | OFF | ||||
| Vehicle speed | 04 | Vehicle speed signal | Road test the vehicle | The speedometer and scan tool MB991958 display the same value. | |
DATA LIST REFERENCE
SPEED-REDUCTION SETTING
- Start the engine.
- Press the "ON/OFF" switch (cruise control system: ON, "CRUISE" indicator light: illuminated).
- Set to the desired speed, above approximately 40 km/h (25 mph).
- Press the "COAST/SET" switch.
- Check to be sure that deceleration continues while the "COAST/SET" switch is pressed, and that the speed at the time it was released becomes the constant driving speed. NOTE: When the vehicle speed reaches the low limit [approximately 40 km/h (25 mph)] during deceleration, the cruise control will be cancelled.
Scheme 77
- Start the engine.
- Press the "ON/OFF" switch (cruise control system: ON, "CRUISE" indicator light: illuminated).
- Set to the desired speed, above approximately 40 km/h (25 mph).
- When any of the following operations are performed while at constant speed during cruise control, check if normal driving is resumed and deceleration occurs. The "CANCEL" switch is pressed. The brake pedal is depressed.
- At a vehicle speed of approximately 40 km/h (25 mph) or higher, check if when the "ACC/RES" switch is pressed, the vehicle speed returns to the speed before cruise control driving was cancelled, and constant speed driving occurs.
- When the "ON/OFF" switch is pressed again (cruise control system: OFF) while driving at constant speed, check if normal driving is resumed and deceleration occurs.
Scheme 78
- Remove the cruise control switch (Refer to «CRUISE CONTROL SWITCH»(ref-592787-S18444506662014011000000) ).
- Measure the resistance between terminal number 2 and terminal number 3 when each of the "ON/OFF", "CANCEL", "COAST/SET" and "ACC/RES" switches is pressed. If the values measured at the time each switch is pressed correspond to those in the table below, the resistance values are correct. RESISTANCE SPECIFICATION Terminal connector of tester Switch position Specified condition 2 - 3 All switches are released. Open circuit "ON/OFF" switch is pressed Continuity (less than 2 ohms) "CANCEL" switch is pressed 202.5 - 208 ohms "COAST/SET" switch is pressed 610.5 - 624.5 ohms "ACC/RES" switch is pressed 1838 - 1877 ohms
- Check that the cruise control switch illuminates when a positive battery terminal is connected to the connector terminal number 4, and terminal number 1 is grounded.
STOPLIGHT SWITCH CHECK
Refer to STOPLIGHT SWITCH CHECK .
CLUTCH SWITCH CHECK
Refer to CLUTCH SWITCH CHECK AND ADJUSTMENT .
THROTTLE ACTUATOR CONTROL MOTOR CHECK
Refer to THROTTLE ACTUATOR CONTROL MOTOR CHECK .