| Table 1: | Typical Symptoms and Causes |
| Table 2: | Typical Voltage Measurements |
Important: Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the power mirrors and the power windows systems. Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
| • | Inspect all related ground points for being clean and tight. |
The following are some typical symptoms with probable causes.
Symptom | Possible Cause | ||||
|---|---|---|---|---|---|
LOCK function inoperative from the door switch and the transmitter |
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UNLOCK function operative on the driver's door only from the door switch and the transmitter |
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LOCK function inoperative from the transmitter | Open in PNK wire between the remote control door lock receiver and S226 | ||||
UNLOCK function operative on the driver's door only from the transmitter | Open in RED/WHT wire between the remote control door lock receiver and S222 | ||||
UNLOCK function inoperative on the driver's door lock from the door switch and operative on the driver's door lock from the transmitter | Open in PNK/GRN wire between the remote control door lock receiver and S228 | ||||
LOCK function inoperative on the driver's door only from the door switch and the UNLOCK function inoperative from the transmitter | Open in BLK wire between the remote control door lock receiver and G201 | ||||
UNLOCK function inoperative on the driver's door only from the door switch and all functions inoperative from the transmitter | Open in RED/WHT wire between S221 and S222 |
The following table provides some typical voltage measurements.
Terminal/wire | Circuit | Normal Value | Condition |
|---|---|---|---|
H | Not Used | -- | -- |
G | Not Used | -- | -- |
F | Not Used | -- | -- |
E-RED/WHT | Battery positive voltage | 10-14 Volts | -- |
D | Not Used | -- | -- |
C | Not Used | -- | -- |
B-PNK/GRN | Unlock signal | 10-14 Volts | UNLOCK |
A-BLU/RED | Unlock control | 10-14 Volts (momentary) | UNLOCK |
J-BLK/WHT | Ignition positive voltage | 10-14 Volts | Ignition ON |
K | Not Used | -- | -- |
L-PNK/WHT | Data link connector | 10-14 Volts | -- |
M | Not Used | -- | -- |
N-BLK | Ground | 0-1 Volt | -- |
P-RED/WHT | Battery positive voltage | 10-14 Volts | -- |
R-PNK | Lock control | 10-14 Volts | LOCK |
S | Not Used | -- | -- |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
