DESCRIPTION
While the engine is being cranked, battery voltage is applied to terminal STA of the ECM.
If the ECM detects the starter control (STA) signal while the vehicle is being driven, it determines that there is a malfunction in the STA circuit. The ECM then illuminates the MIL and stores this DTC.
This monitor runs when the vehicle is driven at 20 km/h (12 mph) or more for 20 seconds or more.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
---|---|---|---|---|---|---|
P061512 | Starter Relay Circuit Short to Battery | All of the following conditions are met (1-trip detection logic):
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| Comes on | DTC stored | SAE Code: P0617 |
MONITOR STRATEGY
Related DTCs | P0617: Starter signal/Verify input signal |
Required sensors/components (Main) | ST relay, Park/neutral position switch assembly, Certification ECU (Smart Key ECU Assembly) |
Required sensors/components (Sub) | Vehicle speed sensor (VSS), Crankshaft position (CKP) sensor |
Frequency of operation | Continuous |
Duration | 20 sec. |
MIL operation | Immediate |
Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored | None |
Battery voltage | 10.5 V or more |
Engine switch | On (IG) |
Vehicle speed | 20 km/h (12.43 mph) or more |
Engine speed | 1000 rpm or more |
TYPICAL MALFUNCTION THRESHOLDS
Starter signal | ON |
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
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HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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N/A |
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HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
NOTICE:
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PROCEDURE
1. | READ VALUE USING TECHSTREAM (STARTER SW) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Transmission / Data List / Starter SW.
Powertrain > Transmission > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Starter SW | Starter signal | OFF or ON |
| - |
Tester Display |
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Starter SW |
(e) Read the Data List according to the display on the Techstream.
OK:
Condition | Starter SW |
---|---|
Engine switch on (IG) | OFF |
(f) Read the Data List according to the display on the Techstream while the vehicle is being driven with an engine speed of 1000 rpm or more at a vehicle speed of 20 km/h (12 mph) or more.
OK:
Condition | Starter SW |
---|---|
Driving at 20 km/h (12 mph) or more (engine speed 1000 rpm or more) | OFF |
HINT:
If the result of either of the above is not as specified, proceed to the next step with the engine switch on (IG), the Techstream connected and Data List item "Starter SW" selected.
HINT:
If the starter assembly operates continuously when the engine switch is turned on (IG), proceed to the next step without reading the Data List item "Starter SW".
OK | SYMPTOMS SIMULATION AND DTC CHECK |
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2. | INSPECT ST RELAY (CHECK FOR SHORT CIRCUIT) |
(a) Enter the following menus: Powertrain / Transmission / Data List / Starter SW.
Powertrain > Transmission > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Starter SW | Starter signal | OFF or ON |
| - |
Tester Display |
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Starter SW |
(b) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.
(c) Read the Data List according to the display on the Techstream.
Result | Proceed to |
---|---|
The Data List item "Starter SW" does not change from ON. | A |
The Data List item "Starter SW" changes from ON to OFF. | B |
HINT:
B | REPLACE ST RELAY |
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3. | CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY) |
HINT:
The purpose of this step is to check for ST relay terminal voltage under abnormal conditions.
(a) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly. |
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(b) Turn the engine switch on (IG).
(c) Measure the voltage between ST relay terminal 2 and body ground.
HINT:
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4. | INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (CHECK FOR SHORT CIRCUIT) |
(a) Disconnect the C31 park/neutral position switch assembly connector. |
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(b) Measure the voltage between ST relay terminal 2 and body ground and compare it to the voltage measured in the previous step.
Result | Proceed to |
---|---|
The voltage between ST relay terminal 2 and body ground does not change when the connector is disconnected. | A |
The voltage between ST relay terminal 2 and body ground changes when the connector is disconnected. | B |
HINT:
B | REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY |
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5. | INSPECT ECM (CHECK FOR SHORT CIRCUIT) |
(a) Disconnect the A25 ECM connector. |
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(b) Measure the voltage between ST relay terminal 2 and body ground and compare it to the voltage measured in the previous step.
Result | Proceed to |
---|---|
The voltage between ST relay terminal 2 and body ground does not change when the connector is disconnected. | A |
The voltage between ST relay terminal 2 and body ground changes when the connector is disconnected. | B |
HINT:
B | GO TO STEP 7 |
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6. | CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY - SMART KEY ECU ASSEMBLY - ST RELAY) |
(a) Disconnect the A25 ECM connector.
(b) Disconnect the C31 park/neutral position switch assembly connector.
(c) Disconnect the A15 certification ECU (smart key ECU assembly) connector.
(d) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
A25-43 (STA), C31-9 (L), A15-20 (STA) or 2 (ST relay) - Other terminals | Always | 10 kΩ or higher |
OK | CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START (CHECK FOR STA TERMINAL VOLTAGE OF SMART KEY ECU ASSEMBLY) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
7. | REPLACE ECM |
(a) Replace the ECM.
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NEXT | PERFORM REGISTRATION |