DESCRIPTION
While the engine is being cranked, battery voltage is applied to terminal STA of the TCM.
If the TCM detects the Starter Control (STA) signal while the vehicle is being driven, it determines that there is a malfunction in the STA circuit. The TCM then illuminates the MIL and sets the DTC.
This monitor runs when the vehicle is driven at 20 km/h (12.4 mph) for over 20 seconds.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0617 | When conditions (a), (b) and (c) are met, positive (+B) battery voltage 10.5 V or more applied to TCM for 20 seconds (1 trip detection logic): (a) Vehicle speed more than 20 km/h (12.4 mph) (b) Engine speed more than 1000 rpm (c) STA signal ON |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Tech Tips
The following troubleshooting flowchart is based on the premise that the engine is cranked normally. If the engine does not crank, proceed to the problem symptoms table Click here.
Read freeze frame data using the GTS. The TCM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction Click here.
PROCEDURE
READ VALUE USING GTS (STARTER SIGNAL)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / ECT / Data List.
Read the value displayed on the GTS.
Crank the engine.
Read the value displayed on the GTS.
| OK | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| OK |
|
CHECK TCM (STA VOLTAGE) Click here |
| NG |
|
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
| *1 | Component without harness connected (Park/Neutral Position Switch) |
Disconnect the park/neutral position switch connector.
Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.
| Standard Resistance | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here |
| OK |
|
CHECK TCM (STA VOLTAGE)
| *1 | Front view of wire harness connector (to TCM) |
Connect the park/neutral position switch connector.
Disconnect the TCM connector.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| NG |
|
CHECK HARNESS AND CONNECTOR (TCM - PARK/NEUTRAL POSITION SWITCH) Click here |
| OK |
|
REPLACE TCM Click here
CHECK HARNESS AND CONNECTOR (TCM - PARK/NEUTRAL POSITION SWITCH)
| *1 | Front view of wire harness connector (to TCM) |
Disconnect the TCM connector.
Remove the ST relay from the engine room relay block.
Disconnect the park/neutral position switch connector.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK STARTER SIGNAL CIRCUIT Click here