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
(a): 09900–25008 (multi
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 . |
Conrod crank pin bearing inspection and
selection
Refer to “engine bottom side disassembly” (page 1d-
49).
Refer to “engine bottom side assembly” .
Inspection
Inspect the bearing surfaces for any signs of fusion,
pitting, burn or flaws. If any, replace them with a
specified set of bearings.
Place the plastigauge axially along ...
Fuel level gauge inspection
Inspect the fuel level gauge in the following procedures:
remove the fuel pump. Refer to “fuel pump disassembly and assembly” in
section 1g .
Measure the resistance at each fuel level gauge in
float position. If the resistance is incorrect, replace
fuel level gauge with a ne ...
Cylinder head cover disassembly and
assembly
Disassembly
Remove the cylinder head cover. Refer to “engine top side disassembly” .
Remove the gaskets (1) and (2).
Remove the pair control solenoid valve (3) along
with the pair reed valve covers (4).
Remove the pair reed valves (5) and cmp sensor
(6).
As ...