Scribd
Upload
5K views3 pages

P17A0

This document provides information about diagnostic trouble code P17A0, which indicates an open circuit in the automatic disconnecting differential (ADD) shift motor control circuit. The trouble code is set if the circuit is open while switching between high-2 and high-4 gear ratios. Potential causes include issues with the wire harness, connectors, 4-wheel drive control ECU, or ADD actuator assembly. The provided procedure checks the resistance of wires between the ECU and actuator connectors, and then checks the internal resistance of the actuator assembly if the wires test okay.

Uploaded by

Eugenio Brito
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
5K views3 pages

P17A0

This document provides information about diagnostic trouble code P17A0, which indicates an open circuit in the automatic disconnecting differential (ADD) shift motor control circuit. The trouble code is set if the circuit is open while switching between high-2 and high-4 gear ratios. Potential causes include issues with the wire harness, connectors, 4-wheel drive control ECU, or ADD actuator assembly. The provided procedure checks the resistance of wires between the ECU and actuator connectors, and then checks the internal resistance of the actuator assembly if the wires test okay.

Uploaded by

Eugenio Brito
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM, Diagnostic DTC:P17A0

DTC Code DTC Name

Automatic Disconnecting Differential Motor


P17A0
Control Circuit Open

DESCRIPTION

This DTC is output when an open circuit in the A.D.D. shift motor drive circuit is detected.

DTC
Detection Item DTC Detection Condition Trouble Area
No.

• Diagnosis Condition: While


switching between H2 and H4
(A.D.D. shift motor operating) • Wire harness and
with the ignition switch turned to connector
ON
Automatic
• 4 wheel drive
Disconnecting • Malfunction Status: Open circuit
P17A0 control ECU
Differential Motor in the A.D.D. shift motor drive
Control Circuit Open circuit • A.D.D. actuator
(differential motor
• Malfunction Time: 0.03 seconds
actuator assembly)
or more

• Other: 1 trip detection logic

WIRING DIAGRAM

Refer to DTC P17A9.

Click here

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU -


DIFFERENTIAL MOTOR ACTUATOR ASSEMBLY)

a. Disconnect the C40 4 wheel drive control ECU connector.

b. Disconnect the C7 A.D.D. actuator (differential motor actuator assembly) connector.

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

Standard Resistance

page 1 sur 3
Tester Connection Condition Specified Condition

C40-2 (DM1) - C7-1 (DM1) Always Below 1 Ω


C40-6 (DM2) - C7-2 (DM2) Always Below 1 Ω

Result

Proceed to

OK
NG

NG REPAIR OR REPLACE HARNESS OR


CONNECTOR

OK

2. INSPECT DIFFERENTIAL MOTOR ACTUATOR ASSEMBLY (A.D.D. SHIFT


MOTOR)

Component without harness connected


*a
(A.D.D. Actuator (Differential Motor Actuator Assembly))

a. Disconnect the C7 A.D.D. actuator (differential motor actuator assembly) connector.

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

Standard Resistance

Tester Connection Condition Specified Condition

1 (DM1) - 2 (DM2) Always 1.5 to 10 Ω

Result

Proceed to

OK

page 2 sur 3
Proceed to
NG

OK REPLACE 4 WHEEL DRIVE CONTROL ECU

Click here Click here Click here

NG REPLACE DIFFERENTIAL MOTOR ACTUATOR


ASSEMBLY

Click here

page 3 sur 3

You might also like