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.
2. Turn the ignition switch to the "ON" position.
3. Read the TCL/ASC diagnostic trouble code.
Q: Is the DTC U1105 (current trouble) set?
YES: Diagnose the TCL/ASC by referring to DTC U1105: YR/G CAN
TIMEOUT/NOT EQUIPPED
.
NO: The procedure is complete.
INSPECTION PROCEDURE 11: TCL/ASC System dose not Operate. COMMENT The fall-safe function is probably canceling TCL/ASC system. In this case, scan
tool MB991958 can be used to Retest each system by checking the diagnostic
trouble codes. TROUBLESHOOTING HINTS (The most likely causes for this case:)
Malfunction of the CAN bus line. Malfunction of the TCL/ASC-ECU.
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
STEP 1. Hydraulic unit check
Refer to POINTS IN WAVEFORM MEASUREMENT
.
Q: Is the hydraulic unit normal?
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor
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YES: Go to Step 2.
NO: Connect the brake pipes correctly, repair the external brake lines, or
replace the hydraulic unit.
STEP 2. Verify that the condition described by the customer exists.
Q: Can any faults be found with the brake operation?
YES: Check the brake system related components except the ASC system.
NO: The procedure is complete.
DATA LIST REFERENCE TABLE The following items can be read by the scan tool from the TCL/ASC-ECU input
data.
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor
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Fig. 229: Data List Reference Table
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ACTUATOR TEST REFERENCE TABLE The scan tool activates the following actuators for testing. NOTE: If the TCL/ASC-ECU runs down, actuator testing cannot be
carried out.
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor
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Fig. 230: Actuator Test Reference Table
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ACTUATOR TEST SPECIFICATIONS NOTE: Actuator testing is only possible when the vehicle is
stationary.
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2004 BRAKES Traction Control, Active Skid Control System - Endeavor
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Fig. 231: Actuator Test Specifications
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CHECK AT ABS-ECU TERMINAL VOLTAGE CHECK CHART
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Required Special Tool
:
MB991952: ABS Check Harness
1. Disconnect the ABS-ECU connector A-32, and then use special tool
MB991952 to measure the voltages between terminals (34) and each terminal
other than terminal (12) as well as between terminal (12) and each terminal
other than terminal (34).
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Fig. 232: Disconnecting ABS
-ECU Connector A
-32
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2004 BRAKES Traction Control, Active Skid Control System - Endeavor
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2. The terminal layouts are shown in the illustrations below.
Fig. 233: Signal Specification
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RESISTANCE AND CONTINUITY BETWEEN HARNESS-SIDE CONNECTOR TERMINALS 1. Disconnect the connector A-32, and connect special tool ABS Check Harness
(MB991952) to the wiring harness-side connector.
2. Measure the resistance and continuity between the terminals indicated in the
table below. NOTE: Do not measure terminal voltage for approximately
three seconds after the ignition switch is turned "ON."
The TCL/ASC-ECU performs the initial check during
that period.
NOTE: Do not connect special tool ABS Check Harness
(MB991952) to the TCL/ASC-ECU.
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor