P2101
DTC P2101: Throttle Actuator Control Motor Magneto MalfunctionThrottle Actuator Control Motor Circuit:
CIRCUIT OPERATION
- Controls the current that is applied from ECM
TECHNICAL DESCRIPTION
- ECM
DESCRIPTIONS OF MONITOR METHODS
Throttle actuator control motor intelligent power device detects shorted-high/low and overheat of itself.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- Not applicable
Sensor (The sensor below is determined to be normal)
- Not applicable
DTC SET CONDITIONS
Check Condition
- Battery positive voltage is higher than 8.3 volts.
Judgement Criterion
- The coil current of the throttle actuator control motor is 8 ampere or more for 0.3 second.
OBD-II DRIVE CYCLE PATTERN
None.
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are)
- Throttle actuator control motor failed.
- Shorted throttle actuator control motor circuit, harness damage or connector damage.
- ECM failed.
- PCM failed.
DIAGNOSIS
Required Special Tools:
- MB991958: Scan tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991910: Main Harness A
STEP 1. Check harness connector B-06 at throttle actuator control motor for damage.
Q: Is the harness connector in good condition?
YES: Go to Step 2.
NO: Repair or replace it. Then go to Step 7.
STEP 2. Check the throttle actuator control motor.
1. Disconnect the connector B-06.
2. Measure the resistance between throttle actuator control motor side connector terminal No. 1 and No. 2.
Standard value: 0.3 - 80 Ohms [at 20 °C (68 °F)]
Q: Is the measured resistance between 0.3 and 80 Ohms [at 20 °C (68 °F)]?
YES: Go to Step 3.
NO: Replace the throttle body assembly. Then go to Step 7.
STEP 3. Check harness connector B-22 at ECM
Q: Is the harness connector in good condition?
YES: Go to Step 4.
NO: Repair or replace it. Then go to Step 7.
STEP 4. Check for short circuit to ground and harness damage between throttle actuator control motor connector B-06 (terminal No. 1) and ECM
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair it. Then go to Step 7.
STEP 5. Check for short circuit to ground and harness damage between throttle actuator control motor connector B-06 (terminal No. 2) and ECM
Q: Is the harness wire in good condition?
YES: Go to Step 6.
NO: Repair it. Then go to Step 7.
STEP 6. Using scan tool MB991958, read the diagnostic trouble code (DTC).
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK"(OFF) position before connecting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. After the DTC has been deleted, read the DTC again.
4. Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is DTC P2101 set?
YES: Replace the ECM or the PCM. When the ECM or the PCM is replaced, register the encrypted code. Refer to Encrypted Code Registration Criteria Table. Then go to Step 7.
NO: It can be assumed that this malfunction is intermittent.
STEP 7. Using scan tool MB991958, read the diagnostic trouble code (DTC).
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. After the DTC has been deleted, read the DTC again.
4. Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is DTC P2101 set?
YES: Retry the troubleshooting.
NO: The inspection is complete.