B1504

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: B1504: Lost Communication with Steering SW
B1504 - Lost Communication with Steering SW

DESCRIPTION

The combination meter assembly communicates with the multi-information switch (steering pad switch assembly) via a direct line. If the combination meter assembly detects a communication malfunction, it stores this DTC.

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT
This DTC is detected only on vehicles with a multi-information switch (steering pad switch assembly) with touch tracer.

If this DTC is detected on a vehicle without a multi-information switch (steering pad switch assembly) with touch tracer, do not replace the multi-information switch (steering pad switch assembly)

PROCEDURE

1. READ VALUE USING TECHSTREAM (MULTI DISPLAY SELECT SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) Check the values by referring to the table below.

Combination Meter

OK:

Multi-information switch (steering pad switch assembly) condition displayed on the Techstream changes with the actual switch operation.

NG -- CHECK SPIRAL CABLE

OK -- REPLACE COMBINATION METER ASSEMBLY Removal

2. CHECK SPIRAL CABLE

(a) Check the spiral cable Testing and Inspection.

NG -- REPLACE SPIRAL CABLE Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - STEERING PAD SWITCH ASSEMBLY)

(a) Disconnect the F4 and z33 connectors.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. REPLACE MULTI-INFORMATION SWITCH (STEERING PAD SWITCH ASSEMBLY)

(a) Replace the multi-information switch (steering pad switch assembly) with a new or a known good one Removal.

OK:

The operation of the combination meter assembly returns to normal.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- END