Toyota CH-R Service Manual: Extension Module Malfunction 2 (B1556)

• A communication malfunction DTC may be stored.
• The navigation ECU may not operate normally.

HD Radio Tuner Malfunction (B1551,B158D,B15B0,B15B3,B15B7,B15BA)

DESCRIPTION These DTCs are stored when a malfunction occurs in the radio and display receiver assembly. DTC No. Detection Item DTC Detection Condition T ...

Extension Module Disconnected 2 (B1543)

DESCRIPTION If the radio and display receiver assembly cannot detect the navigation ECU for a certain period of time (90 seconds) after the engine switch is turned on (ACC) and the radio and disp ...

Other materials:

Toyota CH-R Service Manual > Lumbar Switch: Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT LUMBAR POWER SEAT SWITCH (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condit ...

Toyota CH-R Service Manual > Power Window Control System: Improper Operation
DESCRIPTION In cases where a door window closed (closes) by itself even though a window closing operation was not performed, possible causes include vehicle-side malfunction, environmental causes, or operation by the customer (including other passengers in the vehicle). By using the operation ...