For 1990-2009 cars
Power, Ground, PSD Motor
Power Door Systems Components
Handling ESD Sensitive Parts Notice

### Circuit Description

The rear side door actuator control module monitors the position of the transaxle shifter through the transaxle range switch. If the transaxle is shifted out of the PARK position while the PSD is open, the rear side door actuator control module sounds the power sliding door alarm to warn the driver that the sliding door is not fully closed.

If the transaxle shifter is out of PARK and the operator commands the PSD to open, the rear side door actuator control module sounds the power sliding door alarm (for as long as the PSD open/close switch is pressed) to warn the driver that the power sliding door has been inhibited from opening.

In addition, during PSD diagnosis, the power sliding door alarm is also used to read Diagnostic Trouble Codes (DTCs) stored in the rear side door actuator control module.

When the transaxle is in PARK, the transaxle range switch sends a B+ signal to the rear side door actuator control module through circuit 275. When the transaxle is shifted out of PARK, the transaxle range switch removes the B+ signal to the rear side door actuator control module.

The rear side door actuator control module energizes the power sliding door alarm (causing the power sliding door alarm to sound) by sending B+ through circuit 902. The power sliding door alarm is grounded through circuit 901.

### Diagnostic Aids

• | Inspect for the following conditions:

- | An open in circuit 901

- | An open in circuit 902

- | A faulty alarm

• | An intermittent failure may be difficult to detect and to accurately diagnose. Faulty electrical connections or wiring causes most intermittent problems. When an intermittent condition is suspected, inspect the suspected circuits for the following conditions:

- | Poor mating of connector halves

- | Backed out terminals

- | Improperly formed or damaged terminals

- | Wire chafing

- | Poor wire-to-terminal connections

- | Dirty or corroded terminals

- | Damaged connector bodies

- | A broken wire inside the insulation

• | Use a J 35616 whenever a diagnostic procedure requests probing or inspecting a terminal. Using the J 35616 ensures that no damage to the terminal will occur. Using the J 35616 provides an estimate of whether the contact tension is sufficient.

### Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

1. This step tests for a faulty alarm.

2. This step determines if circuit 901 is open or if the PSD control module is faulty.

3. This step determines if circuit 902 is open or if the PSD control module is faulty.

4. This step tests for an open in circuit 901.

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the Power Sliding Door (PSD) Diagnostic System Check performed? | -- | Go to Step 2 | Go to Power Sliding Door (PSD) Diagnostic System Check
2 |

1. Disconnect the power sliding door alarm connector.
2. Connect a jumper wire between the power sliding door alarm connector terminal A to ground (alarm side).
3. Connect a jumper wire between the power sliding door alarm connector terminal B to B+ (alarm side).

Does the power sliding door alarm sound?

--

Go to Step 3

Go to Step 5

3 |

1. Disconnect the rear side door actuator control module electrical connector C3.
2. Using a DMM, measure the resistance between the rear side door actuator control module harness connector C3 terminal A and the power sliding door alarm harness connector terminal B. Refer to Circuit Testing in Wiring Systems.

Does the resistance measure less than the specified value?

2 ohms

Go to Step 4

Go to Step 6

4 | Using a DMM, measure the resistance between the rear side door actuator control module harness connector C3 terminal B and the power sliding door alarm harness connector terminal A. Refer to Circuit Testing in Wiring Systems. Does the resistance measure less than the specified value? | 2 ohms | Go to Step 8 | Go to Step 7
5 | Replace the power sliding door alarm. Refer to Door Open Alarm Replacement . Is the repair complete? | -- | Go to Step 9 | --
6 | Repair the poor connection or open in circuit 902. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | --
7 | Repair the poor connection or open in circuit 901. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | --
8 | Replace the rear side door actuator control module. Refer to Rear Side Door Actuator Control Module Replacement . Is the repair complete? | -- | Go to Step 9 | --
9 |

1. Turn the ignition switch to the LOCK position.
2. Reconnect any connectors/components removed.
3. Perform the PSD re-initialization. Refer to Power Sliding Door (PSD) Re-Initialization .

Does the PSD operate normally?

--

System OK

Go to Power Sliding Door (PSD) Diagnostic System Check