Rear Power Drop Glass Down Relay Check

WARNING: This page is about a different car, the 2005 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR POWER DROP GLASS UP RELAY POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect rear power drop glass down relay.
Turn ignition switch ON.

Check voltage between rear power drop glass down relay connector and ground.

Fig 1: Checking Voltage Between Rear Power Drop Glass Down Relay Connector And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

VOLTAGE BETWEEN REAR POWER DROP GLASS DOWN RELAY CONNECTOR AND GROUND REFERENCE

Connector	Terminals (Wire color)		Voltage (V) (Approx.)
Connector	(+)	(-)	Voltage (V) (Approx.)
M155	1 (W/L)	Ground	Battery voltage
M155	5 (L/B)	Ground	Battery voltage

OK or NG

OK : GO TO 2.
NG : Repair or replace harness.

CHECK REAR POWER DROP GLASS DOWN RELAY

Check continuity between rear power drop glass down relay terminals 3 and 4, 3 and 5.

Fig 2: Checking Continuity Between Rear Power Drop Glass Down Relay Terminals 3 And 4, 3 And 5

Courtesy of NISSAN MOTOR CO., U.S.A.

CONTINUITY BETWEEN REAR POWER DROP GLASS DOWN RELAY TERMINALS 3 AND 4, 3 AND 5 REFERENCE

Terminal		Condition	Continuity
3	4	12V direct current supply between terminals 1 and 2	No
3	4	No current supply	Yes
3	5	12V direct current supply between terminals 1 and 2	Yes
3	5	No current supply	No

OK or NG

OK : GO TO 3.
NG : Replace rear power drop glass down relay.

CHECK REAR POWER DROP GLASS DOWN RELAY GROUND CIRCUIT
Check continuity between rear power drop glass down relay connector M155 terminal 4 and ground.

Fig 3: Checking Continuity Between Rear Power Drop Glass Down Relay Connector M155 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

4 (B) - Ground : Continuity should exist .

OK or NG
- OK : GO TO 4.
- NG : Repair or replace harness.
CHECK REAR POWER DROP GLASS DOWN RELAY CIRCUIT
1. Disconnect rear power drop glass switch.
2. Check continuity between rear power drop glass down relay connector M155 terminal 2 and rear power drop glass switch connector M156 terminal 5.
  
  Fig 4: Checking Continuity Between Rear Power Drop Glass Down Relay Connector M155 Terminal 2 And Rear Power Drop Glass Switch Connector M156 Terminal 5
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  2 (L/W) - 5 (L/W) : Continuity should exist .
OK or NG
- OK : Replace rear power drop glass switch.
- NG : Repair or replace harness.