P0617

1NZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0617: Starter Relay Circuit High

DTC P0617 - Starter Relay Circuit High

DESCRIPTION

The cranking holding control system provides a current to the starter when the ECM detects the ignition switch's start signal (STSW). When the ECM judges that the engine has started, the system cuts the current to the starter. When the ECM receives the STSW signal, it turns on the ACC (Accessory) relay, which prevents flickering of the combination meter, clock and audio system. Also, the ECM sends a signal to the ECM's STAR terminal. Then the STAR output signal travels through the Park/Neutral Position (PNP) switch to the ST relay, causing the starter to activate. When the engine is cranking, the starter operation signal is sent to the ECM's STA terminal.





While the engine is being cranked, the positive 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 sets the DTC.
This monitor runs when the vehicle is driven at 12.43 mph (20 km/h) for over 20 seconds.






*: A/T denotes Automatic Transaxle models and M/T denotes Manual Transaxle models.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





WIRING DIAGRAM





INSPECTION PROCEDURE
HINT:
- The following troubleshooting flowchart is based on the premise that the engine is cranked normally.
If the engine will not crank, proceed to the problem symptoms table Symptom Related Diagnostic Procedures.
- Read freeze frame data using a Techstream. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data, from the time the malfunction occurred.

PROCEDURE

1. READ VALUE USING TECHSTREAM (STARTER SIGNAL)
(a) Connect a Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester ON.
(d) Select the following menu items: Powertrain / Engine and ECT / Data List / All Data / Starter Signal.
(e) Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.
OK:






OK -- CHECK FOR INTERMITTENT PROBLEMS
NG -- Continue to next step.
2. INSPECT PARK / NEUTRAL POSITION SWITCH (A/T) OR CLUTCH START SWITCH (M/T)




(a) Inspect the Park/Neutral Position (PNP) switch (for A/T models).
(1) Disconnect the C27 PNP switch connector.
(2) Check the resistance when the transmission gear selector lever is moved to each position.
Standard resistance:






(3) Reconnect the PNP switch connector.




(b) Inspect the clutch start switch (for M/T models).
(1) Disconnect the A16 clutch start switch connector.
(2) Check the resistance when the clutch start switch is ON and OFF.
Standard resistance:






(3) Reconnect the clutch start switch connector.
OK -- INSPECT IGNITION SWITCH
NG -- Continue to next step.
3. REPLACE PARK / NEUTRAL POSITION SWITCH (A/T) OR CLUTCH START SWITCH (M/T)
(a) Replace the PNP switch (for A/T models) Removal.
(b) Replace the clutch start switch (for M/T models) Removal.
NEXT -- Continue to next step.
4. READ VALUE USING TECHSTREAM (STARTER SIGNAL)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester ON.
(d) Select the following menu items: Powertrain / Engine and ECT / Data List / All Data / Starter Signal.
(e) Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.
OK:






OK -- END
NG -- Continue to next step.
5. INSPECT IGNITION SWITCH




(a) Disconnect the D8 ignition switch connector.
(b) Check the resistance.
Standard resistance:





(c) Reconnect the ignition switch connector.
OK -- READ VALUE USING TECHSTREAM (STARTER SIGNAL)
NG -- Continue to next step.
6. REPLACE IGNITION SWITCH
(a) Replace the ignition switch Removal.
NEXT -- Continue to next step.
7. READ VALUE USING TECHSTREAM (STARTER SIGNAL)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester ON.
(d) Select the following menu items: Powertrain / Engine and ECT / Data List / All Data / Starter Signal.
(e) Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.
OK:






OK -- END
NG -- Continue to next step.
8. REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - PNP SWITCH OR CLUTCH START SWITCH - ECM)
NEXT -- Continue to next step.
9. CHECK WHETHER DTC OUTPUT RECURS (DTC P0617)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester ON.
(d) Clear DTCs DTC Check / Clear.
(e) Drive the vehicle at more than 12.43 mph (20 km/h) for over 20 seconds.
(f) Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
(g) Read DTCs.
Result:






B -- END
A -- REPLACE ECM