Toyota Camry (XV70): Check For Intermittent Problems
Toyota Camry Repair Manual XV70 (2018-2024) / Engine, Hybrid System / 2gr-fks (engine Control) / Sfi System / Check For Intermittent Problems
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.
- Clear the DTCs.
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- Switch the ECM from normal mode to check mode using the Techstream.
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- Perform a simulation test.
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- Check and wiggle the harness(es), connector(s) and terminal(s).
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Basic Inspection
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by
Registration
REGISTRATION CAUTION / NOTICE / HINT PROCEDURE
1. VIN (VEHICLE IDENTIFICATION NUMBER) NOTICE: The Vehicle Identification Number (VIN) must be written to a replacement ECM.
HINT: The VIN is a 17-di
Initialization
INITIALIZATION Inspection After Repair Perform Learning Value Reset and Idle Learning after replacing or servicing parts related to engine operation. Details on procedures required are indicated by an
SEE MORE:
Lost Communication With ECM/PCM "A" (U0100-U0142,U0151,U0155)
DESCRIPTION
DTC No. Detection Item
DTC Detection Condition Trouble Area
Memory U0100
Lost Communication With ECM/PCM "A"
No communication with ECM
CAN communication system
ECM
Memorized
U0131 Lost Communication With Power Steering Control Mo
Inspection
INSPECTION PROCEDURE 1. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
(a) Turn the roller by hand to check that it turns smoothly. HINT:
If the roller does not turn smoothly, replace the No. 1 valve rocker arm sub-assembly.
2. INSPECT VALVE LASH ADJUSTER ASSEMBLY
NOTICE
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