Toyota Sienna Service Manual: Starter Relay Circuit High
DTC P0617 Starter Relay Circuit High
MONITOR DESCRIPTION
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 12.4 mph (20 km/h) for over 20
seconds.

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
- Read freeze frame data using the intelligent tester. The ECM 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
1 READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL)
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position and turn the
tester on.
- Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
- Check the value displayed on the tester when the
ignition switch is turned to the ON position and START
position.
OK

2 INSPECT PARK/NEUTRAL POSITION SWITCH

- Inspect the Park/Neutral Position (PNP) switch.
- Disconnect the P1 PNP switch connector.
- Measure the resistance according to the value(s) in
the table below.
Standard resistance

- Reconnect the PNP switch connector.
3 READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL)
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position and turn the
tester on.
- Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
- Check the value displayed on the tester when the
ignition switch is turned to the ON position and the
START position.
OK
4 INSPECT IGNITION SWITCH ASSEMBLY
- Disconnect the I15 ignition switch connector.
- Measure the resistance according to the value(s) in the
table below.
Standard resistance
- Reconnect the ignition switch connector.
5 READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL)
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position and turn the
tester on.
- Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / PRIMARY /
STARTER SIG.
- Check the value displayed on the tester when the
ignition switch is turned to the ON position and the
START position
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (PNP SWITCH - STA TERMINAL OF ECM)
DTC P0607 Control Module Performance
DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures
that the ECM is
functioning properly. If outputs from the CPUs are di ...
DTC P0630 VIN not Programmed or Mismatch - ECM / PCM
DESCRIPTION
DTC P0630 is set when the Vehicle Identification Number (VIN) is not stored
in the Engine Control Module
(ECM) or the input VIN is ...
Other materials:
Transfer
SST
RECOMMENDED TOOLS
EQUIPMENT
LUBRICANT
SSM
...
Components
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE FRONT BUMPER ASSEMBLY
3. REMOVE FOG LIGHT ASSEMBLY
Disengage the 2 claws
Disengage the 2 pins and remove the fog light
assembly.
DISASSEMBLY
1. REMOVE FOG LIGHT BULB
Turn in the dir ...
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
...