DESCRIPTION
The headlight leveling ECU assembly outputs DTC information to the Techstream via this circuit.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (DLC3 - HEADLIGHT LEVELING ECU ASSEMBLY) |
(a) Disconnect the A40 headlight leveling ECU assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A40-15 (PRST) - D1-7 (SIL) |
Always |
Below 1 Ω |
|
A40-15 (PRST) - Body ground |
Always |
10 kΩ or higher |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
LVL Terminal CircuitEngine Coolant Temperature / Intake Air Temperature Correlation (P011B)
DESCRIPTION
The engine has two temperature sensors, an engine coolant temperature sensor
and an intake air temperature sensor, to detect the temperature while the engine
is in operation. A thermistor, whose resistance value varies according to the tempera ...
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
2. REMOVE UPPER CONSOLE PANEL SUB-ASSEMBLY (w/o Seat Heater Syste ...
Mass or Volume Air Flow Circuit Low Input (P0102,P0103)
DESCRIPTION
The mass air flow meter is a sensor that measures the amount of air flowing through
the throttle valve. The ECM uses this information to determine the fuel injection
time and to provide the appropriate air-fuel ratio.
Inside the mass air flow ...