Reducing Agent Transfer Pump -V436-, CHECKING
Observe all safety precautions: SAFETY PRECAUTIONS
View clean working conditions: CLEAN WORKING CONDITIONS
Prior to repair work, perform a preliminary check to verify the condition. Refer to PRELIMINARY CHECK .
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.
Special tools and workshop equipment required
- Multimeter
- Wiring diagram
Test Requirements
- The ignition switched off.
Start diagnosis
-- Disconnect theReducing Agent Transfer Pump -V436- electrical harness connector. -1-
Checking voltage
-- Turn the ignition switch ON.
-- Measure the voltage of the Reducing Agent Transfer Pump -V436- harness connector terminal 1 to ground.
Specified value: 11.20 V (+/- 1.5 V)
If specified value was not obtained:
-- Turn the ignition switch OFF.
Checking wiring
-- Remove the Engine Control Module -J623-. Refer to the Repair Manual.
-- Using a multimeter, check the Reducing Agent Transfer Pump -V436- electrical harness connector to the Reducing Agent Metering System Control Module -J880- electrical harness T30 connector for resistance.
| Reducing Agent Transfer Pump -V436- electrical harness connector terminal | Reducing Agent Metering System Control Module -J880- electrical harness connector T30 terminal |
|---|---|
| 2 | 26 |
Specified value: 1.5 Ω Max.
If the specified value was not obtained:
-- Check the wiring for a short circuit to each other, Battery voltage, Ground or high resistance.
-- If necessary, repair the faulty wiring connection.
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If no malfunction is detected in the wiring and the voltage readings were Not correct:
-- Replace the Engine Control Module -J623-. Refer to the service information for removal and installation procedures.
Final Procedures
After the repair work, the following work steps must be performed in the following sequence:
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .