DTC P0817:00 [AY6A-EL, AY6AX-EL]


id0502k1824600

DTC P0817:00

Starter lock output signal circuit

DETECTION CONDITION
•  B+ short
―  Conditions: Ignition switch ON, TCM communication normal, in D or R position
―  Circumstances: 0V detected for start lock output voltage
―  Time period: Determined after 2 times lasting 0.1 or more seconds
•  GND short / open
―  Conditions: Ignition switch ON, TCM communication normal, in P or N position
―  Circumstances: 12V detected for start lock output voltage
―  Time period: Determined after 2 times lasting 0.1 or more seconds
Diagnostic support note:
•  The MIL does not illuminate.
•  The AT warning light illuminates.
•  PENDING CODE is not available.
•  FREEZE FRAME DATA is available.
•  The DTC is stored in the TCM memory.
FAIL-SAFE FUNCTION
POSSIBLE CAUSE
•  Open circuit between PCM terminal 1Q and TCM terminal A5
•  Short to ground in wiring harness between PCM terminal 1Q and TCM terminal A5
•  Short to power in wiring harness between PCM terminal 1Q and TCM terminal A5
•  PCM malfunction
•  Damaged connector between PCM and TCM
•  TCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA been recorded on the repair order?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT VOLTAGE OF STARTER LOCK OUTPUT SIGNAL CIRCUIT
•  Switch the ignition ON (Engine off).
•  Shift the selector lever to P or N position.
•  Inspect for voltage TCM connector terminal A5 (wiring harness-side).
•  Is the voltage 0 V?
Yes
Go to go to Step 5.
No
Go to the next step.
4
INSPECT TCM CONNECTOR FOR POOR CONNECTION
•  Disconnect the TCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Are terminals normal?
Yes
Go to Step 10.
No
Replace the couple component, then go to Step 10.
5
INSPECT VOLTAGE OF STARTER LOCK OUTPUT SIGNAL CIRCUIT
•  Shift the selector lever to D position or R position.
•  Inspect for voltage TCM connector terminal A5 (wiring harness-side).
•  Is the voltage B+?
Yes
Go to go to Step 10.
No
Go to the next step.
6
INSPECT PCM FOR POOR CONNECTION
•  Switch the ignition OFF.
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Are terminals normal?
Yes
Go to the next step.
No
Replace the couple component, then go to Step 10.
7
INSPECT STARTER LOCK OUTPUT SIGNAL CIRCUIT FOR OPEN CIRCUIT
•  Inspect for continuity between TCM connector terminal A5 and PCM terminal 1Q (wiring harness-side).
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the harness, then go to Step 10.
8
INSPECT STARTER LOCK OUTPUT SIGNAL CIRCUIT FOR SHORT TO GROUND
•  Inspect for continuity between PCM terminal 1Q (wiring harness-side) and body ground.
•  Is there continuity?
Yes
Repair or replace the harness, then go to Step 10.
No
Go to the next step.
9
INSPECT STARTER LOCK OUTPUT SIGNAL CIRCUIT FOR SHORT TO POWER
•  Switch the ignition ON (Engine off).
•  Inspect the voltage at PCM terminal 1Q (wiring harness-side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to the next step.
10
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all the disconnected connectors.
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Start the engine.
2.  Warm up the engine to normal operating temperature.
3.  Drive the vehicle in D position.
•  Is the same DTC present?
Yes
Replace the TCM, then go to the next step.
No
Go to the next step.
11
VERIFY NO DTCs ARE PRESENT
•  Perform the “Reading DTCs Procedure”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.