P1690
DTC P1690 SMARTRA NO RESPONSEComponent Location:
GENERAL DESCRIPTION
1. The sequence of the pin code storage are as follows.
1. Input the PIN code into the scanner when key teaching process.
The scanner transmits the Encrypted Code to the ECM after converting the PIN code into Encrypted Code.
2. When the ECM gets the first key learning command , it transmits the SMARTRA3 learnt command and Encrypted Code to the SMARTRA3.
3. If the SMARTRA3 statue is virgin/neutral, the SMARTRA3 stores Encrypted Code in EEPROM and transmits the success message of the Encrypted Code storage. (If the SMARTRA3 is learnt, the SMARTRA3 compares Encrypted Code transmitted by the ECM with Encrypted Code stored in EEPROM and transmits the (in)correct Encrypted Code message to ECM)
4. If the SMARTRA3 is learnt normally or the Encrypted Code of the registered SMARTRA3 is same as the ECM, the ECM begins operation the Transponder Learning.
5. If the learning of the first transponder, the ECM stores the Encrypted Code in its EEPROM and converts state into learnt state.
2. The SMARTRA3 learning:
1. starts with EMS request of PIN from scanner through the key teaching procedure.
2. is possible in case that the status of SMARTRA is "virgin" or "neutral".
3. In case that the SMARTRA3 is "learnt", the SMARTRA3 will transmits the information if PIN inputted from scanner is same as the PIN in SMARTRA3.
4. is possible regardless of key status.
3. The sequence of the SMARTRA3 confirms are as follows.
1. After communication with the SMARTRA3, the ECM transmits the random number with requirement of the TP ID information.
2. The SMARTRA3 encryptes the random number and transmits the result (Encrypted Random Number) to the ECM with TP ID information.
3. The ECM compares the result transmitted from the SMARTRA3 with the result calculated by ECM.
And If result are coincided with each other; the ECS concludes the valid confirmation of the SMARTRA3.
DTC DESCRIPTION
The PCM/ECM sets DTC P1690 if authentication between PCM/ECM and SMARTRA has been failed.
DTC Detecting Condition:
Diagnostic Circuit Diagram:
MONITOR SCANTOOL DATA
1. Connect scantool to Data Link Connector (DLC).
2. IGN "ON" & Engine "OFF"
3. Monitor the "ECU, KEY and Smartra STATUS" Parameter on the Scantool.
Specification : "LEARNT"
4. Has the "SMARTRA" status been learnt?
YES - Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, damage on the ECM or SMARTRA.
And this DTC has not been erased in previous repair. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO - Go to "Inspection & Repair" procedure.
TERMINAL AND CONNECTOR INSPECTION
1. Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?
YES - Repair as necessary and go to "Verification Vehicle Repair" procedure.
NO - Go to "W/Harness Inspection" procedure.
POWER CIRCUIT INSPECTION
1. Check for open in harness
1. Ignition "OFF"
2. Disconnect SMARTRA Connector.
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between Engine Control Relay Power of SMARTRA harness connector and chassis ground.
Specification : 9 - 16 V
5. Is the measured voltage within specifications?
YES - Go to "Signal circuit Inspection" procedure.
NO - Check for open or short in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
SIGNAL CIRCUIT INSPECTION
1. Check for open in harness
1. Ignition "OFF"
2. Disconnect SMARTRA connector.
3. Measure resistance between signal terminal of smartra harness connector and ECM/PCM harness connector.
Specification : 1 Ohm or less
4. Is the measured resistance within specifications?
YES - Go to "Check for short in harness" procedure.
NO - Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
2. Check for short in harness
1. Ignition "OFF"
2. Disconnect SMARTRA connector.
3. Ignition "ON" & Engine "OFF".
4. Measure voltage between signal terminal of SMARTRA harness connector and chassis ground.
Specification : Approx. 5.48 V
5. Is the measured voltage within specifications?
YES - Go to "Signal circuit Inspection" procedure.
NO - Check for short in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
GROUND CIRCUIT INSPECTION
1. Check for open in ground harness
1. Ignition "OFF"
2. Disconnect SMARTRA Connector.
3. Measure resistance between ground terminal of SMARTRA harness and chassis ground.
Specification : 1 Ohm or less
4. Is the measured resistance within specifications?
YES - Go to "Component Inspection" procedure.
NO - Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
COMPONENT INSPECTION
1.
1. IGN "ON" & Engine "OFF"
2. Neutralize Both "SMARTRA" and "ECM" and Register transponder key by scantool.
NOTE: Pin code is required to Neutralize SMARTRA and to Register transponder key
3. Are Neutralizing and Registering completed normally?
YES - Perform all the key teaching procedure with scantool. (All the keys must be retaught) and then, go to "Verification of Vehicle Repair" Procedure.
NO - Substitute with a known-good SMARTRA and Perform Key teaching procedure.
If the problem is corrected, replace SMARTRA and then go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and se let "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present?
YES - Go to the applicable troubleshooting procedure.
NO - System is performing to specification at this time.