Non-XD Models

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

Removal

WARNING:

Do not remove radiator cap and reservoir tank cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from radiator.
Wrap a thick cloth around the caps. Slowly turn them a quarter of a turn to release built-up pressure. Carefully remove the caps by turning it all the way.

CAUTION: Before servicing, turn the ignition switch off, disconnect both battery terminals and wait at least three minutes.

NOTE: When removing components such as hoses, tube/lines, etc., cap or plug openings to prevent fluid from spilling.

Remove fusible link cover and remove battery positive cables. Refer to Removal and Installation .
Remove front under cover. Refer to Removal and Installation .
Remove wheel and tire (RH) using power tool. Refer to Removal and Installation .
Remove front fender protector (RH). Refer to Removal and Installation - Front Fender Protector .
Remove bolt then reposition battery ground harness.
Release relay box from mount and set aside.
Disconnect the harness connectors from ECM.
Remove cover (B) from IPDM E/R (1).

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Disconnect harness connectors (A) from IPDM E/R and remove engine harness (RH) from IPDM E/R.
Partially drain engine coolant from the radiator. Refer to Changing Engine Coolant
CAUTION:
- Perform when engine is cold.
- Do not spill coolant on the drive belt.
Disconnect radiator overflow hose from reservoir tank. Refer to Exploded View .
Disconnect reservoir tank hose from multi control valve. Refer to Exploded View .
Remove reservoir tank bolts then reposition reservoir tank.
Remove bolt and disconnect high-pressure pipe from expansion valve.
CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
Remove bolt and disconnect high-pressure pipe from condenser.
CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
Release high-pressure pipe from clips and remove high-pressure pipe.

Installation

Installation is in the reverse order of removal.

After installation, refill engine coolant and check for leaks. Refer to Changing Engine Coolant and System Inspection .
CAUTION: Do not spill coolant in engine compartment. Use shop cloth to absorb coolant.

CAUTION:

Do not reuse O-rings.

Always confirm the lever is fully released (loosened) before attempting to disconnect or connect these connectors to avoid damage to the connector housing or terminals.

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1.	Control unit with single lever	2.	Control unit with dual lever	3.	SMJ connector
A. Fasten		A. Lever		A. Lever
B. Loosen		B. Fasten		B. Fasten
C. Lever		C. Loosen		C. Loosen

Apply A/C oil to the O-ring of the high-pressure pipe for installation.
After charging refrigerant, check for leaks. Refer to Leak Test .