CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
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System Diagram
How To Proceed With TroubleshootingOpen in Bus 3 Main Bus Line
DESCRIPTION
There may be an open circuit in one of the CAN main bus lines when the resistance
between terminals 6 (CA3H) and 21 (CA3L) of the central gateway ECU (network gateway
ECU) is 70 Ω or higher.
Detection Item
Trouble Area
Resistance between term ...
Parts Location
PARTS LOCATION
ILLUSTRATION
*A
w/ Fog Light
*B
w/ Automatic High Beam System
*C
for Manual Transmission
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*1
HEADLIGHT ASSEMBLY LH
*2
HEADLIGHT ASSEMB ...
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly
or cylinder head LH (See page ).
PROCEDURE
1. INSTALL SPARK PLUG TUBE
NOTICE:
When using a new cylinder head, the spark plug tubes must be replaced.
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