DTC detecting condition | Trouble area |
---|---|
•
Signal voltage high
• Signal voltage low |
•
“BLK/BLU” circuit open
• “LT GRN” circuit open or shorted to ground • “LT GRN/RED” circuit open or shorted to power or ground • TP sensor malfunction • ECM malfunction |
Step | Action | YES | NO |
---|---|---|---|
1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
2 |
Check TP sensor and its circuit
2)
Check throttle valve opening percentage displayed on scan tool.
Is it displayed 0% or 100%?
|
Go to Step 3.
|
Intermittent trouble. Check for intermittent referring to
Intermittent and Poor Connection Inspection
.
|
3 |
Check wire harness
1)
Disconnect connector from TP sensor with ignition switch OFF.
2)
Check for proper connection to TP sensor at “LT GRN/RED”, “LT GRN” and “BLK/BLU” wire terminals.
3)
If OK, then with ignition switch ON, check voltage at each of “LT GRN/RED” and “LT GRN” wire terminals and body ground.
Is voltage about 4 – 6 V at each terminal?
|
Go to Step 4.
|
“LT GRN/RED” wire open, “LT GRN/RED” wire shorted to ground circuit or power circuit or “BLK/BLU” wire, “LT GRN” wire open or shorted to ground circuit or poor “E115-22” or “E115-16” connection.
If wire and connection are OK, substitute a known-good ECM and recheck.
|
4 |
Check TP sensor
1)
Check TP sensor resistance referring to
Throttle Position (TP) Sensor On-Vehicle Inspection:M13A
.
Are measured values within specifications?
|
“BLK/BLU” wire open or poor “E115-10” connection.
If wire and connection are OK, substitute a known-good ECM and recheck.
|
Replace TP sensor.
|