Note
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) Diagnostic system check-engine controls".
1) Connect the scan tool.
2) Turn OFF the ignition switch for 1 minute or more.
3) Start the engine. Note that a slight start delay may be noticed.
4) Observe the DTC information with a scan tool. Is DTC P0335, P0340, or P0641 set at the same time?
Yes
Go to the applicable DTC diagnosis.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0335 Crankshaft Position Sensor Circuit".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0340 Camshaft Position Sensor Circuit".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0641 Sensor Reference Voltage 1 Circuit".
No
=>Go to CKP sensor circuit inspection.
1) Inspect all the circuits connecting to the CKP sensor for the following. Is the result normal?
Yes
=>Go to Individual harness connector inspection.
No
Repair the harness wiring as necessary.
1) Inspect for poor connections at the ECM harness connector (pin 28 of E1, pins 18 and 26 of E2, and pin 31 of E3). Is the connection status normal?
2) Inspect for poor connections at the CKP sensor harness connector (pins 1, 2, and 3 of E30). Is the connection status normal?
Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).
3) Are all of the results normal?
Yes
=>Go to CKP sensor and sensor rotor inspection.
No
Repair the connections as necessary.
1) Inspect the CKP sensor and sensor rotor for the following. Is the result normal?
Yes
Replace the CKP sensor.
Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) CKP sensor removal".
Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) CKP sensor installation".
No
Repair the connections as necessary.
1) Clear the DTC with a scan tool.
2) Turn OFF the ignition switch for 1 minute or more.
3) Start the engine.
4) Operate the vehicle under the conditions for running the DTC.
5) Observe the DTC information with a scan tool.