Installation
ComponentsHow To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS
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Catalyst System Efficiency Below Threshold (Bank 1) (P0420)
MONITOR DESCRIPTION
The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter
(TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor, sends pre-catalyst information to
the ECM. The second sensor, the heat ...
Speed Sensor Rotor Faulty (C1237/37,C1275/75-C1278/78)
DESCRIPTION
The skid control ECU measures the speed of each wheel by receiving signals from
the speed sensor.
These signals are used for recognizing that all four wheels are operating properly.
Therefore, all wheel signals must be equal.
DTCs C1275/75 to ...