DTC P0617: Starter Relay Circuit High: Procedure

WARNING: This page is about a different car, the 2009 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

READ VALUE USING TECHSTREAM (STARTER SIGNAL)

Connect Techstream to the DLC3.
Turn the engine switch on (IG) and turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

Check the value displayed on the tester when the engine switch is turned on (IG) and the engine is started.

Engine Switch Condition	ON (IG)	ENGINE START
STARTER SIG	OFF	ON

OK → REPLACE ECM

NG: Go to next step

INSPECT PARK / NEUTRAL POSITION SWITCH ASSEMBLY

Inspect the Park/Neutral Position (PNP) switch.

Fig 1: Identifying Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the E45 switch connector.

Measure the resistance according to the value(s) in the table below.

Standard resistance

Gear Selector Lever Position	Tester Connection	Specified Condition
P	4 (B) - 5 (L)	Below 1 Ω
N	4 (B) - 5 (L)	Below 1 Ω

Reconnect the PNP switch connector.

NG → REPLACE PARK / NEUTRAL POSITION SWITCH (THEN CHECK CRANKING HOLDING FUNCTION CIRCUIT)

OK → CHECK CRANKING HOLDING FUNCTION CIRCUIT