DESCRIPTION
This DTC is output when a short to B+ in the transfer shift motor and A.D.D. shift motor drive circuit is detected.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
P17AA |
Transfer Shift Motor Control Circuit High |
|
|
WIRING DIAGRAM
Refer to DTC P17A9 (See page )
PROCEDURE
1. |
CHECK ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR AND A.D.D. SHIFT MOTOR) |
(a) Disconnect the 4 wheel drive control ECU connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: Transfer shift actuator assembly side:
|
|
Result |
Proceed to |
---|---|
OK |
A |
NG (transfer shift actuator assembly side) |
B |
NG (A.D.D. actuator (differential vacuum actuator assembly) side) |
C |
A |
REPLACE 4 WHEEL DRIVE CONTROL ECU |
C |
GO TO STEP 3 |
|
2. |
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER SHIFT ACTUATOR ASSEMBLY - BODY GROUND) |
(a) Disconnect the F12 4 wheel drive control ECU connector.
(b) Disconnect the T4 transfer shift actuator assembly connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F12-8 (TM1) or T4-2 (TM1) - Body ground |
Ignition switch ON |
Below 1 V |
F12-7 (TM2) or T4-1 (TM2) - Body ground |
Ignition switch ON |
Below 1 V |
OK |
REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
3. |
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND DIFFERENTIAL VACUUM ACTUATOR ASSEMBLY - BODY GROUND) |
(a) Disconnect the F12 4 wheel drive control ECU connector.
(b) Disconnect the A3 A.D.D. actuator (differential vacuum actuator assembly) connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F12-2 (DM1) or A3-1 (DM1) - Body ground |
Ignition switch ON |
Below 1 V |
F12-6 (DM2) or A3-2 (DM2) - Body ground |
Ignition switch ON |
Below 1 V |
OK |
REPLACE DIFFERENTIAL VACUUM ACTUATOR ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
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When there is a malfunction in the CAN communication system, it is detected by the
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Maintenance data (fuel, oil level, etc.)
Dimensions
2WD models except PreRunner
*: Unladen vehicle
4WD models and PreRunner (except
Regular Cab models)
*: Unladen vehicle
*: Unladen vehicle
Vehicle capacity weight
2WD models except PreRunner
*: Installing accessories in addition to those installed at the factory increase ...