DESCRIPTION
The navigation ECU receives a vehicle speed signal from the combination meter assembly.
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CHECK COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM) |
(a) Check the output waveform. (1) Remove the combination meter assembly with the connector(s) still connected. (2) Connect an oscilloscope to terminal F4-6 (+S) and body ground. (3) Turn the engine switch on (IG). (4) Turn a wheel slowly. (5) Check the signal waveform according to the condition(s) in the table below.
OK: The waveform is similar to that shown in the illustration. HINT: When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows. |
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NG | ![]() |
GO TO METER / GAUGE SYSTEM |
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2. |
CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - COMBINATION METER ASSEMBLY) |
(a) Disconnect the F135 navigation ECU connector.
(b) Disconnect the F4 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F135-9 (SPD) - F4-6 (+S) |
Always |
Below 1 Ω |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Toyota CH-R Service Manual > Navigation System: Precaution
PRECAUTION
PRECAUTION FOR NAVIGATION SYSTEM
NOTICE:
When replacing the radio and display receiver assembly or navigation
ECU, always replace it with a new one. If a radio and display receiver assembly
or navigation ECU which was installed to another vehicle is used, the following ...
Toyota CH-R Owners Manual > Engine compartment: Brake fluid
■ Checking fluid level
The brake fluid level should be between the "MAX" and "MIN" lines on the tank.
■ Adding fluid
1. Slide and lift up the rubber strip to partly remove it as shown.
2. Disconnect the claws and remove the service cover.
3. Remove the reserv ...