DESCRIPTION This DTC is detected when an open circuit or short to ground is detected in the transfer shift motor drive circuit.
DTC Code | DTC Detection Condition
- Diagnosis Condition
- Malfunction Status
- Malfunction Time
- Other
| Trouble Area |
P17A8 |
- Ignition switch ON (when transfer shift motor is not operating)
- Open circuit in the transfer shift motor drive circuit
- 1 second or more
- 1 trip detection logic
|
- Wire harness and connector
- 4 wheel drive control ECU
- Transfer shift actuator assembly
| P17A9 |
- Ignition switch ON (when transfer shift motor is not operating)
- Short to ground in the transfer shift motor drive circuit
- 1 second or more
- 1 trip detection logic
|
- Wire harness and connector
- 4 wheel drive control ECU
- Transfer shift actuator assembly
| WIRING DIAGRAM
PROCEDURE
1. |
CHECK TRANSFER SHIFT ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR) |
(a) Disconnect the 4 wheel drive control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
A26-1 (TM1) - A26-2 (TM2) |
Always | Below 5 Ω |
A26-1 (TM1) or A26-2 (TM2) - Body ground |
Always | 10 kΩ or higher | Text in Illustration
*a | Front view of wire harness connector
(to 4 Wheel Drive Control ECU) |
OK |
| REPLACE 4 WHEEL DRIVE CONTROL ECU |
NG |
| |
2. |
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY) |
(a) Disconnect the A26 4 wheel drive control ECU connector. (b) Disconnect the D67 transfer shift actuator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
A26-1 (TM1) - D67-1 (TM1) |
Always | Below 1 Ω |
A26-2 (TM2) - D67-2 (TM2) |
Always | Below 1 Ω |
A26-1 (TM1) or D67-1 (TM1) - Body ground |
Always | 10 kΩ or higher |
A26-2 (TM2) or D67-2 (TM2) - Body ground |
Always | 10 kΩ or higher |
OK |
| REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY |
NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR | |