CS35 2013.04
3.1.13-159 3.1.13-159Electronic Control System - ME7
3. Diagnosis Procedures
Test Conditions Details/Results/Actions
1. General inspection
A. Inspect the oxygen sensor, intake pressure and
temperature sensors, engine coolant temperature
sensor wiring harness connector for damage, poor
contact, aging, loosening or other signs.
B. Inspect the vacuum tubes for the phenomena of
damage, loose, or leakage.
C. Inspect the air intake system for leakage.
D. Inspect for pollutants that may damage the oxygen
sensor: polluting fuels, failed silicone, oil and
coolant.
E. Inspect the engine PRV (crankcase forced
ventilation) system for clogged.
F. Inspect the engine exhaust system for reduce
expenditure or leakage.
Is it normal?
Y
Go to step 2.
N
Repair the fault part.
2. Inspect the DTC
A. Connect the diagnostic tool.
B. Start the engine, inspect engine system.
C. Inspect DTC
Are there any other DTCs except for P0170, P0171,
P0172, P2177, P2178, P2187, P2188 ?
Y
Go to trouble code diagnosis procedure.
Refer to: DTC Diagnostic Procedure Index
(3.1.13 Electrical Control System - ME7,
DTC Diagnosis and Testing).
N
Go to step 3.
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