| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001N5O0 |
| Model Year Start: 2021 | Model: Corolla | Prod Date Range: [04/2020 - 09/2022] |
| Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for HV Model): Tachometer Malfunction; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] | ||
|
Tachometer Malfunction |
DESCRIPTION
In this circuit, the combination meter assembly receives engine speed data signal from the hybrid vehicle control ECU via CAN communication. The combination meter assembly displays the engine speed calculated based on the data received from the hybrid vehicle control ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
-
Before replacing the hybrid vehicle control ECU, refer to Registration.
Click here
![2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication DTCs are output.
Click here
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
|
|
2. |
CHECK FOR DTC (HYBRID CONTROL SYSTEM) |
(a) Check if hybrid control system DTCs are output.
Powertrain > Hybrid Control > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
GO TO HYBRID CONTROL SYSTEM for Nickel Metal Hydride Battery: Click here
for Lithium-ion Battery: Click here
|
|
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(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 / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Combination Meter > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
TachoMeter Operation (0rpm) |
Tachometer (0 rpm) |
ON |
- |
|
TachoMeter Operation (1000rpm) |
Tachometer (1000 rpm) |
ON |
- |
|
TachoMeter Operation (2000rpm) |
Tachometer (2000 rpm) |
ON |
- |
|
TachoMeter Operation (3000rpm) |
Tachometer (3000 rpm) |
ON |
- |
|
TachoMeter Operation (4000rpm) |
Tachometer (4000 rpm) |
ON |
- |
|
TachoMeter Operation (5000rpm) |
Tachometer (5000 rpm) |
ON |
- |
|
TachoMeter Operation (6000rpm) |
Tachometer (6000 rpm) |
ON |
- |
|
TachoMeter Operation (7000rpm) |
Tachometer (7000 rpm) |
ON |
- |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (0rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (1000rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (2000rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (3000rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (4000rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (5000rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (6000rpm) |
Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
TachoMeter Operation (7000rpm) |
OK:
Tachometer indication is normal.
| OK |
|
| NG |
|
|
|