Detected condition and possible cause
Detected condition |
Possible cause |
||
C14 | Output voltage is not within the following
range. Difference between actual throttle opening and opening calculated by ecm is larger than specified value. 0.2 V ≤ Sensor voltage < 4.8 V |
|
|
P0120 | H | Sensor voltage is higher than specified value. |
|
L | Sensor voltage is lower than specified value. |
Wiring diagram
Troubleshooting
Caution when using the multi-circuit tester, do not strongly touch the terminal of the ecm coupler with a needle pointed tester probe to prevent terminal damage. |
Note after repairing the trouble, clear the dtc using sds tool. Refer to “use of sds diagnosis reset procedures” . |
C14 (use of mode select switch)
Step |
Action |
Yes |
No |
1 |
Special tool
Tester knob indication
voltage ( Tp sensor input voltage 4.5 – 5.5 V ((+) terminal: r – (–) terminal: ground, (+) terminal: r – (–) terminal: b/br) Is the voltage ok? |
Go to step 3. |
|
P0120-h (use of sds)
Step |
Action |
Yes |
No |
1 |
Special tool Tester knob indication
continuity (
Special tool Tester knob indication continuity test ( ) Ecm couplers (harness side) Is the continuity ok? |
Go to step 3. | P/b wire shorted to vcc, or b/br wire open |
P0120-l (use of sds)
Step |
Action |
Yes |
No |
1 |
Special tool Tester knob indication
continuity test (
Special tool Tester knob indication
continuity test ( Ecm couplers (harness side) Is the continuity ok? |
Go to step 2. | R or p/b wire open, or y/w wire shorted to ground. |
2 |
Special tool Tester knob indication
voltage ( Tp sensor input voltage 4.5 – 5.5 V ((+) terminal: r – (–) terminal: ground, (+) terminal: r – (–) terminal: b/br) Is the voltage ok? |
Go to step 3. | Open or short circuit in the r or b/br wire. |
3 |
Special tool Tester knob indication
voltage ( Tp sensor output voltage throttle valve is closed: approx. 1.1 V throttle valve is opened: approx. 4.4 V ((+) terminal: p/b – (–) terminal: b/br) Is the voltage ok? |
|
If check result is not
satisfactory, replace tp
sensor with a new one. Refer to “throttle body disassembly and assembly” in section 1d . |
Throttle body construction
Intake pipe
Evap system purge control solenoid valve
(e-33 only)
Evap canister (e-33 only)
Iat sensor
Isc valve hose
Ho2 sensor
Face
the clamp end left side.
Yellow
marking should face upward.
Face the
end of clamps upward and ke ...
Battery visual inspection
Inspect the battery in the following procedures:
remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Visually inspect the surface of the battery container.
If any signs of cracking or electrolyte leakage from
the sides of th ...
Exhaust control system operation
The excs is operated by the signal supplied from the ecm. The open/close
operation of the excv is performed by
the excva which is controlled by the ecm by changing the current direction of
the actuator motor. The position
sensor (incorporated in the excva) detects the excva movement by measuri ...