Toyota Camry (XV70): 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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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 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 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
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DESCRIPTION These DTCs are stored when a malfunction occurs in the Navigation ECU.
DTC No. Detection Item
DTC Detection Condition Trouble Area
B1556 Extension Module Malfunction 2
When any of the following conditions is met:
Internal power supply malfunction
INSTALLATION CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL REAR COMBINATION LIGHT ASSEMBLY
(a) Engage the grommet. (b) Engage the 3 guides and pin to temporarily install the rea