Special Tools; Troubleshooting; Before Commencing Troubleshooting; Standard Flow Of Diagnostic Troubleshooting - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

54B-2

SPECIAL TOOLS

Tool
A
B
C
D

TROUBLESHOOTING

BEFORE COMMENCING TROUBLESHOOTING

Before starting troubleshooting, check the following two points to ensure there are no defects.
Check the state of the connector couplings to the ETACS-ECU and junction box.
D
Check that the fuses and fusible links relating to all systems are not fused.
D

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.

DIAGNOSTIC FUNCTIONS

READING DIAGNOSIS CODES
Read the diagnosis codes using MUT-II. (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points.)
NOTE
1. Connect MUT-II to the 16-pin diagnosis connector (black).
2. The diagnosis code cannot be read when there is an ETACS-ECU fault or when the power is first
turned ON (voltage rising). In this case, refer to "No Communication with MUT-II" (P. 54B-10) on
Fault Symptom Inspection Procedure, and perform troubleshooting.
SWS -
Special Tools/Troubleshooting
Number Name
MB991502 MUT-II subassem-
bly
MB991529 Diagnosis code
check harness
MB991223 Harness set
A: MB991219 A: Test harness
B: MB991220 B: LED harness
C: MB991221 C: LED harness
D: MB991222 adapter
D: Probe
Use
For SWS inspections (diagnosis code display
and input signal check by MUT-II)
For checking input signals by voltmeter
For checking voltage (continuity and value) at
harnesses and connectors
A: For checking connector pin contact voltage
B: For checking power supply circuits
C: For checking power supply circuits
D: For connection to commercially available
testers