Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
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CAUTION / NOTICE / HINT HINT: *: Use the GTS. PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS
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CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 tri
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
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DESCRIPTION The power distribution box assembly controls the back-up lights via the BKUP LP relay. WIRING DIAGRAM
for HEV Model for Gasoline Model
PROCEDURE
1.
CHECK VEHICLE TYPE (a) Check vehicle type.
Result Proceed to
for HEV Model A
for Gasoline Model B
DESCRIPTION If the communication line (IMI - EFIO) between the ECM and ID code box (immobiliser code ECU) is stuck high, the ECM will store this DTC.
DTC No. Detection Item
DTC Detection Condition Trouble Area
Note B279A12
Engine Immobiliser System Circuit Short to Batt
How To Proceed With Troubleshooting
Back-up Light Circuit
